A basic concept of blood circulation in human body

1. CIRCULATION OF
BLOOD
- DR. MANISH
KHAREL

2. What is circulation
of blood?
• The blood circulation is the
physiological transport process of arterial
and/or venous blood through
the vascular system and the heart
chambers.
• It is of three types:
• Systemic Circulation
• Pulmonary Circulation
• Portal Circulation

3. Systemic Circulation
 The flow of oxygenated blood from the left
ventricle of the heart to various parts of the
body and deoxygenated blood from various
parts of the body to the right atrium is called
systemic circulation.
 The systemic arteries arising from
aorta carry oxygenated blood from the left of
the ventricle to various parts of the body.
 The systemic veins carry deoxygenated
blood from various parts of the body to the
right atrium of the heart.

4. Pulmonary Circulation
 The flow of deoxygenated blood from the
right ventricle to the lungs and the return of
oxygenated blood from the lungs to the left
atrium is called pulmonary circulation.
 The pulmonary trunk( right and left
pulmonary artery) carries blood from the
right ventricle to the lungs where the
exchange of gases takes place.
 The oxygenated blood from the lungs
returns to the left atrium of the heart
through two pulmonary veins, one from
each lung.

5. Portal Circulation
 When a vein of any organ of the body does not open
in the major vein or heart but it divides into capillaries
in any other organ and its blood is transported by the
vein of this organ to the heart, then this type of
system is termed as a portal system.
 For example : Hepatic Portal Circulation, Renal
Portal Circulation, Hypophyseal Portal Circulation.
 Hepatic Portal Circulation: Blood enters the liver
from two sources. The hepatic artery supplies
oxygenated blood from the abdominal aorta and the
hepatic portal vein carry deoxygenated blood from
the digestive organs to the liver.

7. Double Circulation
The human circulatory system is
a double circulatory system. It
has two separate circuits and blood
passes through the heart twice: the
pulmonary circuit is between the
heart and lungs. the systemic
circuit is between the heart and the
other organs.

8. Double
Circulation
For Easy Understanding!

9. Have a Nice Day!