The circulatory system is composed of the heart, blood vessels, and blood. It has two circuits: pulmonary circulation and systemic circulation. In pulmonary circulation, deoxygenated blood is pumped from the heart to the lungs where carbon dioxide is released and oxygen is absorbed. The now oxygenated blood returns to the left side of the heart. Systemic circulation pumps oxygenated blood from the left side of the heart to the rest of the body via arteries and returns deoxygenated blood back to the right side of the heart via veins. The heart is located in the chest and has four chambers that pump blood through valves into the pulmonary and systemic circuits in a double circulation system to supply oxygen and nutrients to tissues.

1. PREPARED
BY:
CRISTHINA
ELAVARASI
IZZAH
GAUSALYA

2. contents
Basic Describe
Two types anatom blood
of blood
circulatory
y of flow to
system human the
heart heart

3. CARDIOVASCULAR SYSTEM
• Heart
COMPOSED • Blood vessels
• Blood
OF:
• Supplying oxygen and
nutrients to tissues and to
remove wastes from tissues.
Function • Human circulatory system is
double circulatory system.

5. PULMANORY CIRCULATION
The pulmonary circulatory system
carries poorly oxygenated and
waste-containing blood from the
right ventricle (the lower right
chamber) of the heart to the lungs.
where the waste products are filtered
into the lungs to be exhaled, and
oxygen is filtered from the lungs into
the blood, to be carried
back, oxygen-rich by the pulmonary
circulatory system to the left atrium.
The left atrium is the upper left
chamber of the heart. It passes the
oxygen-rich blood from the
pulmonary circulatory system
through the pulmonary artery to
the systemic circulatory system
through the left ventricle.

6. SYSTEMIC CIRCULATION
The left ventricle pumps oxygenated blood into the
aorta, and from there the systemic circulatory system
carries this oxygen-rich blood to the rest of the body via the
arteries and capillaries into tissues and cells.
The veins of the systemic circulatory system carry
deoxygenated blood and blood containing waste
products away from the cells and tissues back to the right
atrium (the upper right chamber of the heart) where the
blood is pumped into the right ventricle.
The blood is then passed back to the pulmonary circulatory
system where the cycle begins again

7. IMAGE OF PULMANORY AND SYSTEMIC CIRCULATION

8. BASIC ANATOMY OF THE HEART

9. • heart is located between your lungs in the middle of your chest
• behind and slightly to the left of your breastbone (sternum).
LOCATION
• The heart weighs between 7 and 15 ounces (200 to 425 grams).
• Cone shaped.
• Man’s fist
WEIGHT/SIZE • The average adult heart is 14cm long and 9cm wide.
• Epicardium –covers the outer surface of the heart.
• Myocardium –contains cardiac muscle tissues
• Endocardium-inner surface of the heart
HEART WALL

10.  Two upper chambers
 Right atrium
 Left atrium
ATRIUM have THINNER compared to the
ventricles.Because it just to pump
blood to the ventricles.
 Two lower chambers
 Right ventricles
 Left ventricles
LEFT VENTRICLES has a much THICKER WALL than the right
ventricles.Because right ventricles only pumps blood to the lung but The
left ventricle has to pump blood to the rest of the body.

11. VALVES –Prevent backflow of blood
 Tricuspid valve
 Bicuspid valve
 Semilunary valve (Aortic and Systemic)

12.  Deoxygenated blood enters right atrium through superior and inferior
vena cava.
 Right atrium contract and open tricuspid valve to enter right ventricle.
 From right ventricle, the blood goes through semilunar valve and enters
pulmanory artery and be send to lung.
 CO2 diffuses out, O2 diffuse in - diffusion.
 After exchange of gases occurred, the blood carried back to heart
through pulmanory vein then to the left atrium.
 Left atrium contract and opens bicuspid valve to enter left ventricle.
 From left ventricle oxygenated blood will flow through semilunar valve
and send to ascending aorta and descending aorta to all parts of body.

15. EXAMPLES OF DISEASE
 Arrhythmia
The major symptom of cardiac arrhythmia is irregular
heart rhythm, in which the heart beats abnormally,
either at a slower rate or faster rate.
 Angina
Angina, characterized by severe and recurrent chest
discomfort and pain, is caused due to lack of blood
supply and or oxygen supply in the muscles of the
heart.
 Atherosclerosis
Atherosclerosis is a blood circulation problem,
resulting from accumulation of fatty deposits in the
walls of the blood vessels, especially arteries.
 Hypertension/high blood pressure
systolic pressure more than 140mm hg and diastolic
pressure more than 90mm hg.

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