The circulatory system transports oxygenated blood from the heart to organs via arteries and arterioles, and deoxygenated blood is returned to the heart via veins and venules. The heart has its own blood supply through the coronary circulation. Blood pressure is a measure of the force used to pump blood around the body and is measured using a sphygmomanometer. Haemoglobin is a protein that carries oxygen in red blood cells and can bind up to four oxygen molecules to transport oxygen around the body.
The Human Blood Circulatory system
Humans and other vertebrates have a closed blood circulatory system:
This system consists of
the heart (pump),
series of blood vessels
the blood that flows through them.
This means that circulating blood is pumped through a system of vessels.
Functions of Human Blood Circulatory System
1. oxygen
2. carbon dioxide
3 nutrients
4. water
5. ions
6. hormones
7. antibodies
8. metabolic wastes
The Human Blood Circulatory system
Humans and other vertebrates have a closed blood circulatory system:
This system consists of
the heart (pump),
series of blood vessels
the blood that flows through them.
This means that circulating blood is pumped through a system of vessels.
Functions of Human Blood Circulatory System
1. oxygen
2. carbon dioxide
3 nutrients
4. water
5. ions
6. hormones
7. antibodies
8. metabolic wastes
This presentation is a combination of different slides which I re-purposed. I included a reference of all the slides I used at the end of my presentation.
1 GNM - Anatomy unit - 4 - CVS by thirumurugan.pptxthiru murugan
By:M. Thiru murugan
Unit – IV:
Heart : Structure, functions including conduction system & cardiac cycle
Blood vessels : Types, Structure and position
Circulation of blood
Blood pressure and pulse
Heart
The circulatory system:
It consisting of blood, blood vessels, and heart.
This supplies oxygen and other nutrients,
Transports hormones
Removes unnecessary waste products.
Heart and its Structure
The heart is a muscular organ about the size of a fist,
located in mediastinum just behind and slightly left of the breastbone (sternum).
The heart pumps blood through the blood vessels (arteries and veins called the cardiovascular system).
Structure of heart:
Layers of the heart (3)
Chambers of the heart (4)
Valves of the heart (4)
Blood vessels of the heart (5)
3 layers of the heart:
Epicardium/pericardium: outer protective layer of the heart. Visceral and parietal (pericardial fluid). Protection for the heart and big vessels and prevent collapse of heart,
Myocardium: muscular middle layer wall of the heart. Responsible for keeping the heart pumping blood around the body.
Endocardium: the inner layer of the heart. Regulate blood flow through the chambers of the heart and pass the electrical impulses
Chambers of the heart:
The atria: These are the 2 upper chambers, which receive blood. RA / LA
The ventricles: These are the 2 lower chambers, which discharge blood. RV/ LV
A wall of tissue called the septum separates the left and right atria called atrial septum and the left and right ventricle called ventricular septum.
Valves in the heart:
There are four valves
Two-atrio ventricular valves: The 2 types: bicuspid (mitral) - LA & LV, and tricuspid valves - RA & RV.
Two-semilunar valves: The aortic valves and the pulmonary valve.
Major blood vessels of the heart
There are 5 major blood vessels
Pulmonary artery
Pulmonary veins
Aorta[artery]
Inferior vena cava [IVC] veins
Superior vena cava [SVC] veins
Functions of heart:
Pumping oxygenated blood to the body parts.
Pumping nutrients and other vital substances
Receiving deoxygenated blood and carrying metabolic waste products from the body
Pumping deoxygenated blood to the lungs for oxygenation.
Maintaining blood pressure.
Conduction system
The electrical conduction system that controls the heart rate.
This system generates electrical impulses and conducts them throughout the muscle of the heart, stimulating the heart to contract and pump blood.
The electrical pulses determine the order in which the chambers contract & the heart rate
Conductive system consist of:
SA Node
AV Node
Bundle of his or His Bundles – bundle of branches
( right and left)
4. Purkinje fibres
Sinoatrial node (SA) : also known as the pace maker of the heart and Located in the upper wall of the right atrium
Made up of both muscle and nervous tissue
Here the electrical impulse begins
Atrioventricular (AV) node:
located between the atria and ventricles of the heart
The electrical impulse is carried fr
Biology Project [Circulatory System] Vijay Raja Std Vii Navdeep With Soundvijayaswathy
My project was to prepare a presentation on human circulatory system.
This is what it finally looked like .
Hope it comes of some use to you all .
Vijay Raja
This presentation is a combination of different slides which I re-purposed. I included a reference of all the slides I used at the end of my presentation.
1 GNM - Anatomy unit - 4 - CVS by thirumurugan.pptxthiru murugan
By:M. Thiru murugan
Unit – IV:
Heart : Structure, functions including conduction system & cardiac cycle
Blood vessels : Types, Structure and position
Circulation of blood
Blood pressure and pulse
Heart
The circulatory system:
It consisting of blood, blood vessels, and heart.
This supplies oxygen and other nutrients,
Transports hormones
Removes unnecessary waste products.
Heart and its Structure
The heart is a muscular organ about the size of a fist,
located in mediastinum just behind and slightly left of the breastbone (sternum).
The heart pumps blood through the blood vessels (arteries and veins called the cardiovascular system).
Structure of heart:
Layers of the heart (3)
Chambers of the heart (4)
Valves of the heart (4)
Blood vessels of the heart (5)
3 layers of the heart:
Epicardium/pericardium: outer protective layer of the heart. Visceral and parietal (pericardial fluid). Protection for the heart and big vessels and prevent collapse of heart,
Myocardium: muscular middle layer wall of the heart. Responsible for keeping the heart pumping blood around the body.
Endocardium: the inner layer of the heart. Regulate blood flow through the chambers of the heart and pass the electrical impulses
Chambers of the heart:
The atria: These are the 2 upper chambers, which receive blood. RA / LA
The ventricles: These are the 2 lower chambers, which discharge blood. RV/ LV
A wall of tissue called the septum separates the left and right atria called atrial septum and the left and right ventricle called ventricular septum.
Valves in the heart:
There are four valves
Two-atrio ventricular valves: The 2 types: bicuspid (mitral) - LA & LV, and tricuspid valves - RA & RV.
Two-semilunar valves: The aortic valves and the pulmonary valve.
Major blood vessels of the heart
There are 5 major blood vessels
Pulmonary artery
Pulmonary veins
Aorta[artery]
Inferior vena cava [IVC] veins
Superior vena cava [SVC] veins
Functions of heart:
Pumping oxygenated blood to the body parts.
Pumping nutrients and other vital substances
Receiving deoxygenated blood and carrying metabolic waste products from the body
Pumping deoxygenated blood to the lungs for oxygenation.
Maintaining blood pressure.
Conduction system
The electrical conduction system that controls the heart rate.
This system generates electrical impulses and conducts them throughout the muscle of the heart, stimulating the heart to contract and pump blood.
The electrical pulses determine the order in which the chambers contract & the heart rate
Conductive system consist of:
SA Node
AV Node
Bundle of his or His Bundles – bundle of branches
( right and left)
4. Purkinje fibres
Sinoatrial node (SA) : also known as the pace maker of the heart and Located in the upper wall of the right atrium
Made up of both muscle and nervous tissue
Here the electrical impulse begins
Atrioventricular (AV) node:
located between the atria and ventricles of the heart
The electrical impulse is carried fr
Biology Project [Circulatory System] Vijay Raja Std Vii Navdeep With Soundvijayaswathy
My project was to prepare a presentation on human circulatory system.
This is what it finally looked like .
Hope it comes of some use to you all .
Vijay Raja
Honest Reviews of Tim Han LMA Course Program.pptxtimhan337
Personal development courses are widely available today, with each one promising life-changing outcomes. Tim Han’s Life Mastery Achievers (LMA) Course has drawn a lot of interest. In addition to offering my frank assessment of Success Insider’s LMA Course, this piece examines the course’s effects via a variety of Tim Han LMA course reviews and Success Insider comments.
Palestine last event orientationfvgnh .pptxRaedMohamed3
An EFL lesson about the current events in Palestine. It is intended to be for intermediate students who wish to increase their listening skills through a short lesson in power point.
Welcome to TechSoup New Member Orientation and Q&A (May 2024).pdfTechSoup
In this webinar you will learn how your organization can access TechSoup's wide variety of product discount and donation programs. From hardware to software, we'll give you a tour of the tools available to help your nonprofit with productivity, collaboration, financial management, donor tracking, security, and more.
The French Revolution, which began in 1789, was a period of radical social and political upheaval in France. It marked the decline of absolute monarchies, the rise of secular and democratic republics, and the eventual rise of Napoleon Bonaparte. This revolutionary period is crucial in understanding the transition from feudalism to modernity in Europe.
For more information, visit-www.vavaclasses.com
Introduction to AI for Nonprofits with Tapp NetworkTechSoup
Dive into the world of AI! Experts Jon Hill and Tareq Monaur will guide you through AI's role in enhancing nonprofit websites and basic marketing strategies, making it easy to understand and apply.
Francesca Gottschalk - How can education support child empowerment.pptxEduSkills OECD
Francesca Gottschalk from the OECD’s Centre for Educational Research and Innovation presents at the Ask an Expert Webinar: How can education support child empowerment?
Biological screening of herbal drugs: Introduction and Need for
Phyto-Pharmacological Screening, New Strategies for evaluating
Natural Products, In vitro evaluation techniques for Antioxidants, Antimicrobial and Anticancer drugs. In vivo evaluation techniques
for Anti-inflammatory, Antiulcer, Anticancer, Wound healing, Antidiabetic, Hepatoprotective, Cardio protective, Diuretics and
Antifertility, Toxicity studies as per OECD guidelines
Acetabularia Information For Class 9 .docxvaibhavrinwa19
Acetabularia acetabulum is a single-celled green alga that in its vegetative state is morphologically differentiated into a basal rhizoid and an axially elongated stalk, which bears whorls of branching hairs. The single diploid nucleus resides in the rhizoid.
2. Learning
objectives
Understand the circulatory system and blood
vessels, including arteries, veins, and capillaries.
Understand coronary circulation and that the
heart has its own blood supply
Understand what systemic arterial pressure
(blood pressure) is
Understand the cardiovascular disease and its
diagnostic tests
Understand why haemoglobin is an oxygen-
transporter in the body
Apply the knowledge learned in the Kahoot
3. pulmonary vein, renal artery, mesenteric artery, hepatic vein,
hepatic portal vein, hepatic artery, renal vein, pulmonary artery
Organs Oxygenated
blood
Deoxygenated
blood
Kidney enter via leave via
Gut enter via leave via
Liver enter via leaves via
Lungs leave via enter via
Filling in the gaps:
4. Organs Oxygenated blood Deoxygenated blood
Kidney enter via leave via
Gut enter via leave via
Liver enter via leaves via
Lungs leave via enter via
renalartery
pulmonary
artery
renalvein
mesenteric
artery
pulmonary
vein
hepatic
portal vein
hepatic
artery
hepatic vein
5. • All arteries carry blood away …..........................
• All veins carry blood ….............................
• Arteries carry ..................... blood except from the.....................
• Veins carry ................... blood except from the ….....................
• The main function of the circulatorysystem is to deliver …........
and ….................. to the rest of the body from the heart.
Refresh your memory!
What is the
circulatory
system?
Systemic circulation is made up of the
heart and blood vessels.
To the heart/pulmonary artery/nutrients/oxygen/from the
heart/oxygenated/deoxygenated/pulmonary vein
from the heart
towards the heart
oxygenated Pulmonary arteries
deoxygenated Pulmonary veins
nutrients
blood
7. Arteries and arterioles
Elastic arteries (aorta) - large diameter, low resistance. A large
amount of elastin, smooth muscle and folded endothelium allows the
artery to stretch and recoil to maintain high pressure.
Muscular arteries – deliver blood to specific organs, less elastin and
more smooth muscle, therefore less distensible, more active
on vasoconstriction.
Arterioles – deliver to capillary beds by responding to stimuli from the
brain and local chemicals, mostly smooth muscle that contract to
restrict blood flow or relax to allow full blood flow.
8. Continuous capillaries
• The most common type of capillaries
• Delivers blood to the organ
• Endothelial cells have tight junctions between them
• Contain intercellular clefts: allow the limited passage of fluid and small solutes
• Play a role in active absorption or filtrate
formation (small intestine, kidney)
• Endothelial cells of the vessel have oval pores or
fenestrations
• Most permeable to fluids and small solutes
Fenestrated capillaries
9. • Blood flows through the capillary beds which is
called …...................
• Capillaries form..........................that are
interweaving networks.
• Precapillary sphincters..............or..............to control blood flow
capillary beds
contract relax
microcirculation
Capillary beds/ relax/contract/microcirculation
10. Venules
• Formed when capillaries unite to get the deoxygenated blood out of the organ
• Consists mainly of endothelium
• Larger venules have a sparse smooth muscle and connective tissue
• Carry large volumes of blood back to the heart
• Valves inside veins stop blood flowing backwards
• Blood flows at low pressure
• Consist of 3 layers: endothelium, smooth muscle, connective
tissue
• Inner walls are always thinner than arteries
• Lumens are always larger than arteries
• Not a lot of elastin or muscle tissue
Veins
11. What is the coronary circulation?
• The coronary circulation
supplies the heart with blood.
• The heart has it’s own blood
supply with the left and right
coronary artery.
• The right and left coronary
arteries arise from the base of
the aorta, just above the aortic
valve.
• Most of the venous blood drains
via the coronary sinus directly
into the right atrium.
12. Systemic blood pressure
What is pressure?
'Blood pressure is a measure of the force that your heart uses to pump
blood around your body.' (NHS)
Measured in millimetres of mercury (mmHg) and is given as 2 figures:
• Systolic pressure = the pressure when your heart pushes blood out
• Diastolic pressure = the pressure when your heart rests between beats.
• Ideal blood pressure: between 90/60mmHg and 120/80mmHg
• High blood pressure: 140/90mmHg or higher
• Low blood pressure: 90/60mmHg or lower
13. How is blood pressure measured?
Systemic arterial blood pressure is measured using a Sphygmomanometer.
14. Cardiovascular disease
DEFINITION: Pathological conditions affecting the heart and blood vessels.
Changes/adaptations in your cardiovascular system when exercising, during
pregnancy and in extreme environmental conditions
Conditions include strokes, arrythmias, coronary heart disease
Leading cause of death globally, estimate at 32% of all deaths
Globally 1 in 14 people are living with a heart or circulatory disease
85% of CVD patients are a result of heart attacks and strokes
Risk factors for CV disease:
• Unhealthy diet (high blood cholesterol)
• High blood pressure
• Cigarette smoking
• Genetic predisposition
• Physical inactivity
15. Common tests for CV disease
A complete blood count (CBC)
Cardiac Tn - troponin test
Blood test -
measures levels of other substances
Echocardiogram (ultrasound) -
elicits an x-ray picture of the heart
Electrocardiogram (ECG) -
ECG reads your heart’s electrical impulses
16. Haemoglobin
Haemoglobin is a protein that carries
oxygen in blood vessels around the
body
Structure of haemoglobin
• Each chain has a haem group which
contains an iron ion and gives
haemoglobin it’s red colour
17. Haemoglobin – High affinity for oxygen
Each molecule of haemoglobin can
carry 4 oxygen molecules
• At high oxygen concentration in
the lungs: oxygen binds
to haemoglobin in red blood cells
and forms oxyhaemoglobin.
• At low oxygen concentration in
the organs: oxyhaemoglobin turns
into haemoglobin.
18. Summary
• The circulatory system is important as it delivers oxygen and nutrients to
the rest of the body through the blood
• Oxygenated blood is transported from the heart to organs via the arteries
and arterioles
• Deoxygenated blood is transported from the organs via the veins and venules
back to the heart
• The heart has its own blood supply via the coronary circulation
• Blood pressure is a measure of the force that your heart uses to pump blood
around your body and it is measured using a sphygmomanometer
• Examples of diagnostic tests for CV include blood count, blood tests and
ECG.
• Haemoglobin is a protein that can carry up to 4 molecules of oxygen in blood
vessels around the body
19. To finish off!
Join this Kahoot and complete the questions!
Link:https://create.kahoot.it/details/5f0b9269-db9f-42a5-
bcc1-e5b35319e171