The circulatory system is made up of the heart, blood vessels (arteries, veins, capillaries), and blood, and works together to transport nutrients, oxygen, hormones, and waste throughout the entire body. The heart pumps blood through the blood vessels, delivering oxygen and nutrients to cells and picking up carbon dioxide and other cellular waste. The circulatory system forms a double loop - the pulmonary circulation between the heart and lungs, and the systemic circulation between the heart and all other tissues. Together this system sustains the functions of all organ systems.
The circulatory system consists of the heart, blood vessels, and blood. The heart pumps oxygen-rich blood received from the lungs through the arteries to the body's tissues, and deoxygenated blood returns to the heart via veins to be re-oxygenated in the lungs. The circulatory system transports nutrients, gases, hormones, and waste products throughout the body and helps fight infections through white blood cells.
The circulatory system transports nutrients, water, oxygen, and waste throughout the body using blood, blood vessels, and the heart. Oxygen-rich blood is carried from the heart to body cells via arteries and returns to the heart via veins as oxygen-poor blood. The heart pumps blood in two separate circuits - the pulmonary circulation transports blood to the lungs to receive oxygen and the systemic circulation transports oxygenated blood to all body tissues before returning to the heart.
The document provides an overview of the circulatory system. It defines the circulatory system and discusses the two main types: open and closed. It also describes the components of blood and their functions. Additionally, it examines the heart structure and the two circulatory pathways - pulmonary and systematic circulation. The pulmonary circuit carries deoxygenated blood to the lungs and returns oxygenated blood to the heart, while the systematic circuit provides oxygenated blood to the body and returns deoxygenated blood to the heart.
The document summarizes the structure and function of the circulatory system. It describes that blood is composed of plasma and blood cells. Plasma contains nutrients, waste, gases, and proteins. Red blood cells carry oxygen, white blood cells protect against disease, and platelets help with clotting. The heart has four chambers and uses systole and diastole to pump deoxygenated blood to the lungs and oxygenated blood to the body in double circulation. Blood vessels include arteries, veins, and capillaries to transport blood throughout the body.
The circulatory system transports blood throughout the body using the heart and blood vessels. The heart pumps oxygenated blood received from the lungs through arteries into capillaries where oxygen is delivered to cells and carbon dioxide is picked up, before returning to the heart via veins to repeat the cycle. Blood contains plasma, red blood cells, white blood cells and platelets and flows through two circuits - pulmonary circulation from the heart to the lungs and systemic circulation from the heart to the rest of the body.
The circulatory system consists of the heart, blood vessels, and blood. The heart pumps blood through two circuits - pulmonary circulation to the lungs and systemic circulation to the rest of the body. Blood flows from the right side of the heart to the lungs to receive oxygen, then to the left side to pump oxygenated blood to all body tissues through arteries and returning deoxygenated blood back to the heart through veins. The circulatory system transports oxygen, nutrients, hormones, and wastes throughout the body.
The circulatory system is made up of the heart, blood vessels (arteries, veins, capillaries), and blood, and works together to transport nutrients, oxygen, hormones, and waste throughout the entire body. The heart pumps blood through the blood vessels, delivering oxygen and nutrients to cells and picking up carbon dioxide and other cellular waste. The circulatory system forms a double loop - the pulmonary circulation between the heart and lungs, and the systemic circulation between the heart and all other tissues. Together this system sustains the functions of all organ systems.
The circulatory system consists of the heart, blood vessels, and blood. The heart pumps oxygen-rich blood received from the lungs through the arteries to the body's tissues, and deoxygenated blood returns to the heart via veins to be re-oxygenated in the lungs. The circulatory system transports nutrients, gases, hormones, and waste products throughout the body and helps fight infections through white blood cells.
The circulatory system transports nutrients, water, oxygen, and waste throughout the body using blood, blood vessels, and the heart. Oxygen-rich blood is carried from the heart to body cells via arteries and returns to the heart via veins as oxygen-poor blood. The heart pumps blood in two separate circuits - the pulmonary circulation transports blood to the lungs to receive oxygen and the systemic circulation transports oxygenated blood to all body tissues before returning to the heart.
The document provides an overview of the circulatory system. It defines the circulatory system and discusses the two main types: open and closed. It also describes the components of blood and their functions. Additionally, it examines the heart structure and the two circulatory pathways - pulmonary and systematic circulation. The pulmonary circuit carries deoxygenated blood to the lungs and returns oxygenated blood to the heart, while the systematic circuit provides oxygenated blood to the body and returns deoxygenated blood to the heart.
The document summarizes the structure and function of the circulatory system. It describes that blood is composed of plasma and blood cells. Plasma contains nutrients, waste, gases, and proteins. Red blood cells carry oxygen, white blood cells protect against disease, and platelets help with clotting. The heart has four chambers and uses systole and diastole to pump deoxygenated blood to the lungs and oxygenated blood to the body in double circulation. Blood vessels include arteries, veins, and capillaries to transport blood throughout the body.
The circulatory system transports blood throughout the body using the heart and blood vessels. The heart pumps oxygenated blood received from the lungs through arteries into capillaries where oxygen is delivered to cells and carbon dioxide is picked up, before returning to the heart via veins to repeat the cycle. Blood contains plasma, red blood cells, white blood cells and platelets and flows through two circuits - pulmonary circulation from the heart to the lungs and systemic circulation from the heart to the rest of the body.
The circulatory system consists of the heart, blood vessels, and blood. The heart pumps blood through two circuits - pulmonary circulation to the lungs and systemic circulation to the rest of the body. Blood flows from the right side of the heart to the lungs to receive oxygen, then to the left side to pump oxygenated blood to all body tissues through arteries and returning deoxygenated blood back to the heart through veins. The circulatory system transports oxygen, nutrients, hormones, and wastes throughout the body.
The circulatory system transports nutrients, gases, hormones, blood cells, and other substances to and from cells in the body. It consists of the heart, blood vessels, and blood. The heart pumps blood through two circuits: the pulmonary circuit, which carries deoxygenated blood to the lungs for oxygenation, and the systemic circuit, which carries oxygenated blood to the body's tissues before returning deoxygenated blood back to the heart. Blood contains red blood cells, white blood cells, platelets, and plasma. Red blood cells contain hemoglobin and carry oxygen. White blood cells are part of the immune system. Platelets help blood clotting. The circulatory system allows for gas, nutrient, and waste
The circulatory system consists of the heart, blood vessels, and blood. The heart pumps blood through arteries and veins, circulating oxygen and nutrients to tissues and removing waste. It has four chambers and valves to ensure one-way blood flow. Blood contains red blood cells, white blood cells, and platelets in plasma. The circulatory system has three circuits: pulmonary, systemic, and coronary. Diseases can affect the heart and blood vessels. The document provides details on the structure and function of the circulatory system and common circulatory problems.
The circulatory system transports blood throughout the body using the heart and blood vessels. The heart pumps oxygenated blood received from the lungs through arteries and delivers it to tissues via capillaries, where oxygen and nutrients are exchanged. Deoxygenated blood returns to the heart through veins to repeat the cycle. The circulatory system consists of the heart, blood, and a network of arteries, veins, and capillaries.
The circulatory system consists of the heart, blood vessels, and blood, and is responsible for circulating blood throughout the body. The heart pumps blood through two circuits - pulmonary circulation carries blood to the lungs to receive oxygen, and systemic circulation distributes oxygenated blood to the entire body. Blood delivers oxygen, nutrients, hormones and other substances to cells, and picks up carbon dioxide and wastes. Problems can occur if blood pressure is too high or low or if blood flow is obstructed.
The circulatory system consists of the heart, blood vessels, and blood. The heart pumps blood through two circuits - pulmonary circulation and systemic circulation. In pulmonary circulation, deoxygenated blood leaves the right ventricle and is pumped to the lungs where carbon dioxide is released and oxygen absorbed. Oxygenated blood then returns to the left atrium. In systemic circulation, oxygenated blood leaves the left ventricle and is pumped through arteries to tissues throughout the body, where oxygen is delivered and carbon dioxide and waste are collected and returned to the right atrium via veins.
The circulatory system transports blood throughout the body via the heart and blood vessels. The heart has four chambers that pump blood into two circuits - systemic circulation provides oxygenated blood to tissues while pulmonary circulation oxygenates blood in the lungs. Blood is composed of plasma and three cell types - red blood cells carry oxygen, white blood cells fight infection, and platelets help clotting. Arteries carry blood away from the heart to tissues, veins return blood to the heart, and capillaries allow for gas/nutrient exchange.
The circulatory system transports blood throughout the body via the heart and blood vessels. The heart has four chambers that pump blood into two circuits - systemic circulation pumps oxygenated blood to the body while pulmonary circulation pumps deoxygenated blood to the lungs. Blood is composed of plasma and three cell types - red blood cells carry oxygen, white blood cells fight infection, and platelets help with clotting. Arteries carry blood away from the heart, veins carry blood toward the heart, and capillaries connect the two.
The circulatory system transports blood throughout the body using the heart and blood vessels. The heart pumps oxygen-rich blood received from the lungs through arteries and delivers it to tissues via capillaries, where oxygen and nutrients are exchanged. Deoxygenated blood returns to the heart through veins to repeat circulation. Blood contains plasma, red blood cells, white blood cells, and platelets that aid circulation and defense.
Circulation of blood in human body ppt.pptxsumedh71
The circulatory system transports blood throughout the body via blood vessels. It consists of the heart, blood, and blood vessels. The heart pumps oxygenated blood received from the lungs through arteries and the deoxygenated blood is returned to the heart via veins. There are two types of blood circulation - pulmonary circulation between the heart and lungs and systemic circulation between the heart and the rest of the body. The circulatory system ensures oxygen and nutrients are delivered and waste removed from tissues.
The circulatory system consists of the lymphatic and blood circulations. The blood circulation transports nutrients, oxygen, and waste throughout the body via arteries, veins, and capillaries driven by the heart. Blood is composed of plasma and blood cells including red blood cells, white blood cells, and platelets. The heart pumps blood through two circuits - pulmonary circulation to exchange gases in the lungs and systemic circulation to exchange substances in tissues throughout the body.
The cardiovascular system transports oxygen and nutrients to tissues and removes carbon dioxide and waste. It includes the heart, blood vessels, blood, and lymph. The heart pumps blood through two circuits - pulmonary circulation to the lungs and systemic circulation to the body. Blood transports oxygen, nutrients, hormones and more via plasma while white and red blood cells help fight infection and carry oxygen respectively. Respiration provides oxygen for cellular respiration through the lungs where gas exchange occurs in alveoli surrounded by capillaries.
The human circulatory system consists of the heart, blood vessels, and blood. The heart is a muscular organ located in the chest that pumps blood through the entire body using the blood vessels. It has four chambers - the right and left atria receive blood while the right and left ventricles pump blood out of the heart. The heart pumps deoxygenated blood to the lungs and oxygenated blood to the rest of the body. Maintaining a healthy heart is important to prevent diseases like heart attacks and strokes.
CLASS 10 CH 5 Human Circulatory & Excretory System NOTES EX.pdfEXCELLENT CLASSES
The circulatory system transports blood, nutrients, oxygen, carbon dioxide, and hormones throughout the body using the heart, blood vessels, and blood. The heart pumps blood through arteries, veins, and capillaries. It has four chambers - two upper atria and two lower ventricles. Blood enters the right atrium from the body and enters the left atrium from the lungs. It then flows to the ventricles and is pumped back out through arteries. The circulatory system helps sustain organ systems and protects cells from pathogens. Waste products are also transported for removal from the body.
Cardivascular system
Cardiovascular system include Heart and Blood vessels
Heart:
Pumps the blood
Blood Vessels:
Carries the blood to all parts of the body.
Location
Thorax between the lungs
Pointed apex directed toward left hip
From 2nd Rib to 6th Rib
About the size of your fist
The peripheral vascular system consists of the veins and arteries not in the chest or the abdomen that in the arm, hands, legs and feet.
The peripheral arteries supply the oxygenated blood to the body.
The peripheral veins lead deoxygenated blood from the capillaries in the back to the heart.
Arteries take blood away from the heart. The walls of an artery are made up of thick muscular walls and elastic fibres. Veins carry blood towards the heart and also have valves. The capillaries link arteries and veins, and have a one cell thick wall. Blood is made up of four main things plasma, the liquid part of the blood; Red Blood Cells to carry oxygen; White Blood cells to protect the body from disease and platelets to help blood clot.
The circulatory system contains blood, blood vessels, and the heart. The heart pumps blood through a closed double circulatory system, where blood is pumped from the heart through arteries, then capillaries, then veins, and back to the heart. Blood carries oxygen, nutrients, waste, hormones, and other materials between tissues and organs through this circulatory loop. The main components include the heart, arteries and veins, and blood itself which contains plasma, red blood cells, white blood cells, and platelets.
Blood circulatory system & gastroinstential systemJkumar98
The circulatory system consists of the heart, blood vessels (arteries, veins, and capillaries), and blood. The heart pumps oxygen-rich blood to the body and oxygen-poor blood to the lungs. In the capillaries, gases and nutrients are exchanged. The gastrointestinal system converts food into molecules that are distributed and excretes waste. It consists of the mouth, esophagus, stomach, small and large intestines, liver, pancreas, and glands. Food is broken down and absorbed in the small intestine and undigested material passes to the large intestine for water absorption before excretion.
The circulatory system transports gases, nutrients, wastes, and hormones throughout the body using blood and blood vessels. There are two main types of circulatory systems - open and closed. In a closed circulatory system, found in vertebrates, blood is pumped through blood vessels by the heart and does not come into direct contact with organs. The main components of blood are plasma, red blood cells, white blood cells, and platelets. Red blood cells contain hemoglobin which carries oxygen and gives blood its red color. Blood vessels include arteries, veins, and capillaries, with arteries carrying blood away from the heart and veins carrying blood toward the heart. The heart has chambers including atria and ventricles that work
This document provides information about the circulatory system. It discusses the key features and functions of circulatory systems including transporting gases, nutrients, wastes, and hormones. There are two main types of circulatory systems - open and closed. Open systems circulate fluid through an open body chamber while closed systems circulate fluid through blood vessels. Closed systems are found in vertebrates and allow for homeothermy due to more efficient oxygen transport. Key components of closed circulatory systems include the heart, blood vessels, and blood which transports oxygen, nutrients, removes wastes, and fights infections through white blood cells.
The document provides information on the circulatory system, including its key features and functions. There are two main types of circulatory systems - open and closed. In an open system, fluid circulates through an open body chamber while in a closed system, blood vessels circulate blood. Closed systems allow for larger body sizes as they are more efficient at oxygen transport. The circulatory system also includes blood, which contains plasma, red blood cells, white blood cells and platelets. It transports through a network of arteries, veins and capillaries. The heart pumps blood through the system in vertebrates.
The circulatory system transports nutrients, gases, hormones, blood cells, and other substances to and from cells in the body. It consists of the heart, blood vessels, and blood. The heart pumps blood through two circuits: the pulmonary circuit, which carries deoxygenated blood to the lungs for oxygenation, and the systemic circuit, which carries oxygenated blood to the body's tissues before returning deoxygenated blood back to the heart. Blood contains red blood cells, white blood cells, platelets, and plasma. Red blood cells contain hemoglobin and carry oxygen. White blood cells are part of the immune system. Platelets help blood clotting. The circulatory system allows for gas, nutrient, and waste
The circulatory system consists of the heart, blood vessels, and blood. The heart pumps blood through arteries and veins, circulating oxygen and nutrients to tissues and removing waste. It has four chambers and valves to ensure one-way blood flow. Blood contains red blood cells, white blood cells, and platelets in plasma. The circulatory system has three circuits: pulmonary, systemic, and coronary. Diseases can affect the heart and blood vessels. The document provides details on the structure and function of the circulatory system and common circulatory problems.
The circulatory system transports blood throughout the body using the heart and blood vessels. The heart pumps oxygenated blood received from the lungs through arteries and delivers it to tissues via capillaries, where oxygen and nutrients are exchanged. Deoxygenated blood returns to the heart through veins to repeat the cycle. The circulatory system consists of the heart, blood, and a network of arteries, veins, and capillaries.
The circulatory system consists of the heart, blood vessels, and blood, and is responsible for circulating blood throughout the body. The heart pumps blood through two circuits - pulmonary circulation carries blood to the lungs to receive oxygen, and systemic circulation distributes oxygenated blood to the entire body. Blood delivers oxygen, nutrients, hormones and other substances to cells, and picks up carbon dioxide and wastes. Problems can occur if blood pressure is too high or low or if blood flow is obstructed.
The circulatory system consists of the heart, blood vessels, and blood. The heart pumps blood through two circuits - pulmonary circulation and systemic circulation. In pulmonary circulation, deoxygenated blood leaves the right ventricle and is pumped to the lungs where carbon dioxide is released and oxygen absorbed. Oxygenated blood then returns to the left atrium. In systemic circulation, oxygenated blood leaves the left ventricle and is pumped through arteries to tissues throughout the body, where oxygen is delivered and carbon dioxide and waste are collected and returned to the right atrium via veins.
The circulatory system transports blood throughout the body via the heart and blood vessels. The heart has four chambers that pump blood into two circuits - systemic circulation provides oxygenated blood to tissues while pulmonary circulation oxygenates blood in the lungs. Blood is composed of plasma and three cell types - red blood cells carry oxygen, white blood cells fight infection, and platelets help clotting. Arteries carry blood away from the heart to tissues, veins return blood to the heart, and capillaries allow for gas/nutrient exchange.
The circulatory system transports blood throughout the body via the heart and blood vessels. The heart has four chambers that pump blood into two circuits - systemic circulation pumps oxygenated blood to the body while pulmonary circulation pumps deoxygenated blood to the lungs. Blood is composed of plasma and three cell types - red blood cells carry oxygen, white blood cells fight infection, and platelets help with clotting. Arteries carry blood away from the heart, veins carry blood toward the heart, and capillaries connect the two.
The circulatory system transports blood throughout the body using the heart and blood vessels. The heart pumps oxygen-rich blood received from the lungs through arteries and delivers it to tissues via capillaries, where oxygen and nutrients are exchanged. Deoxygenated blood returns to the heart through veins to repeat circulation. Blood contains plasma, red blood cells, white blood cells, and platelets that aid circulation and defense.
Circulation of blood in human body ppt.pptxsumedh71
The circulatory system transports blood throughout the body via blood vessels. It consists of the heart, blood, and blood vessels. The heart pumps oxygenated blood received from the lungs through arteries and the deoxygenated blood is returned to the heart via veins. There are two types of blood circulation - pulmonary circulation between the heart and lungs and systemic circulation between the heart and the rest of the body. The circulatory system ensures oxygen and nutrients are delivered and waste removed from tissues.
The circulatory system consists of the lymphatic and blood circulations. The blood circulation transports nutrients, oxygen, and waste throughout the body via arteries, veins, and capillaries driven by the heart. Blood is composed of plasma and blood cells including red blood cells, white blood cells, and platelets. The heart pumps blood through two circuits - pulmonary circulation to exchange gases in the lungs and systemic circulation to exchange substances in tissues throughout the body.
The cardiovascular system transports oxygen and nutrients to tissues and removes carbon dioxide and waste. It includes the heart, blood vessels, blood, and lymph. The heart pumps blood through two circuits - pulmonary circulation to the lungs and systemic circulation to the body. Blood transports oxygen, nutrients, hormones and more via plasma while white and red blood cells help fight infection and carry oxygen respectively. Respiration provides oxygen for cellular respiration through the lungs where gas exchange occurs in alveoli surrounded by capillaries.
The human circulatory system consists of the heart, blood vessels, and blood. The heart is a muscular organ located in the chest that pumps blood through the entire body using the blood vessels. It has four chambers - the right and left atria receive blood while the right and left ventricles pump blood out of the heart. The heart pumps deoxygenated blood to the lungs and oxygenated blood to the rest of the body. Maintaining a healthy heart is important to prevent diseases like heart attacks and strokes.
CLASS 10 CH 5 Human Circulatory & Excretory System NOTES EX.pdfEXCELLENT CLASSES
The circulatory system transports blood, nutrients, oxygen, carbon dioxide, and hormones throughout the body using the heart, blood vessels, and blood. The heart pumps blood through arteries, veins, and capillaries. It has four chambers - two upper atria and two lower ventricles. Blood enters the right atrium from the body and enters the left atrium from the lungs. It then flows to the ventricles and is pumped back out through arteries. The circulatory system helps sustain organ systems and protects cells from pathogens. Waste products are also transported for removal from the body.
Cardivascular system
Cardiovascular system include Heart and Blood vessels
Heart:
Pumps the blood
Blood Vessels:
Carries the blood to all parts of the body.
Location
Thorax between the lungs
Pointed apex directed toward left hip
From 2nd Rib to 6th Rib
About the size of your fist
The peripheral vascular system consists of the veins and arteries not in the chest or the abdomen that in the arm, hands, legs and feet.
The peripheral arteries supply the oxygenated blood to the body.
The peripheral veins lead deoxygenated blood from the capillaries in the back to the heart.
Arteries take blood away from the heart. The walls of an artery are made up of thick muscular walls and elastic fibres. Veins carry blood towards the heart and also have valves. The capillaries link arteries and veins, and have a one cell thick wall. Blood is made up of four main things plasma, the liquid part of the blood; Red Blood Cells to carry oxygen; White Blood cells to protect the body from disease and platelets to help blood clot.
The circulatory system contains blood, blood vessels, and the heart. The heart pumps blood through a closed double circulatory system, where blood is pumped from the heart through arteries, then capillaries, then veins, and back to the heart. Blood carries oxygen, nutrients, waste, hormones, and other materials between tissues and organs through this circulatory loop. The main components include the heart, arteries and veins, and blood itself which contains plasma, red blood cells, white blood cells, and platelets.
Blood circulatory system & gastroinstential systemJkumar98
The circulatory system consists of the heart, blood vessels (arteries, veins, and capillaries), and blood. The heart pumps oxygen-rich blood to the body and oxygen-poor blood to the lungs. In the capillaries, gases and nutrients are exchanged. The gastrointestinal system converts food into molecules that are distributed and excretes waste. It consists of the mouth, esophagus, stomach, small and large intestines, liver, pancreas, and glands. Food is broken down and absorbed in the small intestine and undigested material passes to the large intestine for water absorption before excretion.
The circulatory system transports gases, nutrients, wastes, and hormones throughout the body using blood and blood vessels. There are two main types of circulatory systems - open and closed. In a closed circulatory system, found in vertebrates, blood is pumped through blood vessels by the heart and does not come into direct contact with organs. The main components of blood are plasma, red blood cells, white blood cells, and platelets. Red blood cells contain hemoglobin which carries oxygen and gives blood its red color. Blood vessels include arteries, veins, and capillaries, with arteries carrying blood away from the heart and veins carrying blood toward the heart. The heart has chambers including atria and ventricles that work
This document provides information about the circulatory system. It discusses the key features and functions of circulatory systems including transporting gases, nutrients, wastes, and hormones. There are two main types of circulatory systems - open and closed. Open systems circulate fluid through an open body chamber while closed systems circulate fluid through blood vessels. Closed systems are found in vertebrates and allow for homeothermy due to more efficient oxygen transport. Key components of closed circulatory systems include the heart, blood vessels, and blood which transports oxygen, nutrients, removes wastes, and fights infections through white blood cells.
The document provides information on the circulatory system, including its key features and functions. There are two main types of circulatory systems - open and closed. In an open system, fluid circulates through an open body chamber while in a closed system, blood vessels circulate blood. Closed systems allow for larger body sizes as they are more efficient at oxygen transport. The circulatory system also includes blood, which contains plasma, red blood cells, white blood cells and platelets. It transports through a network of arteries, veins and capillaries. The heart pumps blood through the system in vertebrates.
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2. Learning Targets:
• At the end of the lesson the students can
be able to:
- identify and described the structure
of the organs and issues composing the
cardiovascular system
- trace the flow of the blood in
cardiovascular system.
5. • Removes the waste
products
of metabolism to
the excretory organs for
disposal.
• Protects the body
against disease and
infection.
• Clotting stops bleeding
6. The Circulatory System is
divided into three major parts:
• The Heart
• The Blood Vessels
• The Blood
7. • One of the most amazing and
most complex organs in the
body.
• It is highly muscular organ and
is the size of our fist.
The Heart and Blood
Vessels
8. • It pumps blood
throughout the body by
way of involuntary
contractions of the
cardiac muscle.
• The heart is located in the
center of the thoracic or
chest cavity, slightly
toward the left.
9.
10. • The right atrium
receives oxygen-poor
blood from the body
and pumps it to the
right ventricle.
• The right ventricle
pumps the oxygen-
poor blood to the
lungs.
11. • The left atrium
receives oxygen-rich
blood from the lungs
and pumps it to the left
ventricle.
• The left ventricle
pumps the oxygen-rich
blood to the body.
13. • The four valves help maintain
the proper blood flow through
the heart.
14. • The tricuspid valve is between the
right atrium and right ventricle. They
often and close with precise timing to
make the heart pump blood effectively.
15. • The tricuspid and the bicuspid
valves are called atrioventricular
(AV) valves, meaning they are
located between the atrium and
ventricle.
16. • The bicuspid valve or
mitral valve is located
between the left atrium and
left ventricle.
17. • The pulmonary valve lies
between the right ventricle and
the pulmonary artery, which
takes blood to the lungs
18. • The aortic valve lies between the
left ventricle and the aorta.
• This valve (aortic valve) prevents
blood from entering the aorta
prematurely.
19. • The aortic valve
opens when the
ventricle contract,
allowing blood to
move from the heart
and start the journey
to the rest of the
body.
20. • The heart needs
passageway to distribute
blood throughout the body.
• These passageway are the:
21. • The arteries carries blood away
from the heart and generally
transport oxygen-rich
(oxygenated/carbon dioxide
poor) blood
22. • Capillaries connect arteries
and veins. This is where the
gas exchange between the
blood and the tissues takes
place
23. • Capillaries then merge into
venules then into larger
channels called veins .
• Veins - carry blood to the heart
and generally transport oxygen-
poor, carbon dioxide rich blood.
24. The Blood
• Avery vital red fluid (blood) that
flows through our blood vessels,
provide oxygen and nourishment
to our body cells This red fluid
(blood) also take away carbon
dioxide and waste product from
our body cells.
25. • It also helps maintain
body temperature and
controls pH.
• Blood is transported to
the different parts of our
body by the circulatory
system.
26. Blood is composed mainly
of:
• a) Plasma - the
yellowish liquid
that is composed
of 90% water that
carries nutrients,
hormones, and
other important
substances
28. The Red Blood Cells
(RBC)
• The red blood
cells, also
known as
erythrocytes ,
carry oxygen to
the cells.
29. • After transporting oxygen
to the cells, red blood cells
collect the waste gas
(carbon dioxide, the by-
product of cellular
respiration) and transport
it back to the lungs, where
carbon dioxide is expelled
from the body as we
exhale.
30. • The red blood
cells are the most
abundant of the
blood cells (around
5,000,000 red blood
cells in drop of
blood) and its
lifespan is 120 days.
31. • The red blood cells are red in
color because they contain
hemoglobin . Hemoglobin
contains iron (Fe) making it an
excellent transporter of
oxygen and carbon dioxide.
32. The White Blood Cells (WBC)
• The white blood
cells, also known as
leukocytes , battle
infection, attack and
destroy germs or
foreign proteins
that enter the body.
33. • There are about 7,000 WBCs per
milliliter of blood (mL) and this
number can be used as an
indicator of a disease.
• During infection, the body
produces more white blood cells
to help fight off the infection.
35. Several types of white blood
cells:
a) Neutrophil combats bacterial
and fungal infection
b) Eosinophil defends against
parasitic infections c) Lymphocytes
B-cells make antibodies to fight the
foreign protein and T-cells function
in immune response.
36. d) Monocytes remove dead
cells debris and clean up the
“crime scene” where the
body’s soldiers battle an
infection.
e) Basophil functions during
allergic and antigen (foreign
protein reactions.
37. Platelets
• Platelets, also known
as thrombocytes, help
the blood clot, thereby
preventing bleeding
when an artery or vein
is severed or broken.
38. • Blood clotting is a temporary
solution to stop bleeding.
• The lifespan of a platelet is from five
to nine days only. A normal platelet
count of a healthy individual is from
150,000 to 450,000 per milliliter of
blood
39. Plasma
• Blood plasma is the
pale, yellow fluid
where the blood cells
are suspended. Plasma
makes up more than
half of the total blood
volume, roughly 55%.
40. • Plasma also plays a
very important role in
osmosis, thereby
promoting the balance
of electrolytes
• Blood serum is blood
without the blood cells
and the clotting factors
41. Human Circulatory
Paths
• The circulatory system has two
distinct paths, the pulmonary
circuit and the systemic circuit.
• Although they are two distinct
path, they actually occur
simultaneously and not in a
sequential manner. Both side of
the heart work together.
43. • Blood enters the
pulmonary circuit
when the right atrium
receives oxygen-
poor (carbon dioxide-
rich) blood from body
tissues through the
superior vena cava
and the inferior vena
44. • As the blood leaves for the pulmonary
circuit, some of the blood move
through the systemic circuit.
• The superior vena cava receives
blood from the upper part of the
body, and the inferior vena cava
receives blood from the lower part
of the body.
45. • The blood passes through the tricuspid valve into
the right ventricle. From the right ventricle, the
deoxygenated blood is pumped out from the
heart through the pulmonary tract that splits into
the right and left pulmonary arteries going to the
lungs for oxygenation.
46. • Carbon dioxide in the blood diffuses into the
lungs to pick up fresh load of oxygen. At this
point, blood is now oxygen-rich (carbon
dioxide-poor). From the lungs, the blood
returns to the heart by way of the right and left
pulmonary veins.
• Pulmonary circulation end when oxygenated
blood returns to the heart
47. Systemic Circulation
• Systemic
circulation is the
movement of
oxygenated blood from
the heart for
distribution
throughout the body
and bringing in of
deoxygenated blood to
the heart.
48. • Oxygenated blood
enters the left
atrium, then the
blood passes
through the mitral
or bicuspid valve
and into the left
ventricle.
49. • With the great
pressure, the
oxygenated blood from
the left ventricle is
pumped into the aorta,
the biggest artery in
the body, to be
distributed throughout
the body via a network
of blood vessels.
50. • The aorta branches into
smaller arteries, then
into arterioles and
finally into capillaries.
Waste and carbon
dioxide diffuses out of
the cells and into the
blood, the oxygen
diffuses out of the
blood and into the cells.
51. • The blood is
now carbon
dioxide-rich
and oxygen-
poor.
52. • This deoxygenated
blood then continues
its travel and the
capillaries merge into
venules then to larger
veins and finally into
the superior and
inferior vena cavas
that drain into the
right atrium of the
heart.
53. STRUCTURE and FUNCTION:
Working Together of the
Different Organ Systems
• The circulatory system supplies food
nutrients and oxygen that all the
cells of a living body needs.
• In turn, it collects the metabolic
wastes that body cells produce.
54. • Such dual function of the
circulatory system requires a
systematic coordination with
other organ system.
• To carry out its vital functions, it
is imperative for the circulatory
system to reach out to all organs
of the body,
55. The Circulatory System and
Digestive System
• Most of the digested foods
are absorbed in the
intestinal villi .
• Intestinal villi is the tiny
fingerlike projections at the
lower portion of the small
intestine.
• Each villus is provided with
two kinds of vessels:
capillaries and lacteals.
56. • Molecules of simple sugars and amino acids
diffuse into the capillaries and reach the
blood.
• Molecules of fatty acids and glycerol diffuse
into the lacteals and reach the lymph. At
this point, the circulatory system takes over.
• The circulatory fluids, blood and lymph,
distribute the digested foods to all cells of
the body
57. The Circulatory System and
the Excretory System
• The circulatory system plays a very important
role in the excretion of metabolic waste products
for our body.
• The circulating blood is responsible for collecting
these waste products from all body cells and
transporting them to various excretory organs
through which particular wastes are expelled
from the body.
• How does the circulatory system work with the
kidneys , our body’s major excretory organs?
58. • The renal artery brings
blood with many impurities
to the kidney.
• In the kidney, the renal
artery subdivides into small
arterioles that branch into a
network of tiny capillaries
making up the glomerulus ,
which is enclosed by the
Bowman’s capsule.
59. • As blood passes through the
glomerulus, urine, water,
glucose, and salt are filtered
into the Bowman’s capsule.
However, when the blood
passes through the long
convoluted tubules of the
nephron, much of the water
absorbed through the
glomeruli is reabsorbed
together with the salts, blood
sugar, blood proteins and
other substances needed by
the body.
60. • The liquid which remains in the
tubules is now called urine.
• This excretory waste is passed on
from the kidney to the ureter and to
the urinary bladder for temporary
storage. As urine fills up the urinary
bladder, it becomes heavier and
heavier until the sphincter muscle that
closes the opening of the bladder
relaxes and the smooth muscles of the
bladder contracts, expelling the urine
through the urethra and out of the
body.
61. How does the circulatory
system work with other
excretory organs?
• The liver cells change
amino acids, through the
series of chemical reactions,
into urea.
• Urea, the nitrogenous waste
is then transported by the
blood from the liver mostly
to the kidney where it is
filtered out of the blood and
expelled as part of the
urine.
62. • The liver also
breaks down old
blood cells.
• Most of the iron
salts from the blood
cells are brought
back to the bone
marrow by the
blood.
63. • The rest of the broken
blood cells become part
of the bile which helps in
fat digestion.
• Urea is also transported
by the blood from the
liver to the sweat glands
of the skin where it is
expelled as part of sweat,
another excretory waste.
64. The Circulatory System
and the Nervous System
• The nervous system
works with the
circulatory system
mainly in the heart by
controlling the flow of
blood in the different
chambers of the heart.
65. • The nervous system
controls the “electrical
relay system” in the
heart by opening or
closing chambers of the
heart to ensure that
blood travels out of the
left ventricles into the
rest of the body.
66. • The muscle of the heart and that of the
blood vessels are called involuntary
muscle because they are not under the
control of our will.
• Their action are governed by the
autonomous nervous system through
the sympathetic and parasympathetic
nerves whose actions are opposite
each other.
67. • A sympathetic nerve makes the heart
beat faster while a parasympathetic
nerve slows down heart beat. Thus,
the sympathetic and the
parasympathetic nerves regulate and
control each other’s activity to
maintain homeostasis or the dynamic
balance in the functioning of the heart.
68. • The hypothalamus of the
forebrain in the central
nervous system plays
another important role for
homeostasis .
• Among its vital functions
are to regulate blood
pressure and to control
the secretions of many
hormones.
69. The Circulatory System and the
Endocrine System
• Certain glands in the body
release their secretions
directly into the bloodstream
instead of through tiny
tubelike duct.
•
70. • These tiny tube like duct are called
ductless or endocrine glands. Their
secretions are called hormones, are
special protein substances that are
present in small quantities in the
body.
• They bring about changes in cells or
tissues which are referred to as their
“targets”
71. • The effect of a hormone may
be an increased activity or a
decrease activity of the target
cells. It may also be just plain
maintenance of the cells.
72. Following are some examples of
hormone actions involving the
circulatory system
• 1.Adrenalin (adrenal gland hormone)
increases blood pressure and heart rate
and dilate blood vessels.
• 2. Insulin (a pancreatic hormone)
lowers blood sugar level.
• 3. Parathyroid hormones raises blood
calcium level.
73. The Circulatory System
and Some Other Organ
System
• The circulatory system depends
on the skeletal system for the
production of blood cells.
• The red blood cells are produced
in the red marrow of flat bones
(such as the ribs) and long bones
(such as thigh bones)
74. • Blood cells, including
red blood cells,
certain white blood
cells and blood
platelets are formed
from special
connective tissues
referred to as
hemocytoblasts.
75. • The circulatory system and the
muscular system keep each other
healthy.
• The healthier and more active the
muscular system is, the healthier the
circulatory system.
• Active muscles demand a greater
amount of oxygen and nutrients for
energy source and repair of worn-
out tissues.
76. • The heart pumps harder to
enable the blood to provide
these needs.
• Blood also collects waste
products from the
hardworking muscles and
carries them to their
respective excretory organs.
77. • If the circulatory system fails to
supply the necessary requirements,
the muscles will cramp and
eventually become dysfunctional.
• Long-term inactivity of the muscles
is detrimental to the overall health of
the cardiovascular system.
78. • The heart will weaken and lose mass while
the blood vessels serving the muscles will
atrophy or shrink along with the muscles
themselves.
• On the other hand, enough and regular
exercise increases the mass of body muscles
over time.
• The heart muscle strengthen and the size of
the blood vessels connected to the active
body muscles increases as well.