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What are the two types of blood circulation and explain each type?
Wiki User
∙ 11y ago
Systemic Circulation - Oxygenated blood is pumped from the left ventricle of the heart heart to the entire body (except the lungs) through the aorta and deoxygenated blood is drained back to the right atrium of the heart through the vena cavae.
Pulmonary Circulation - Deoxygenated blood is pumped from the right ventricle of the heart to the lungs through the pulmonary trunk, and oxygenated blood flows back to the left atrium of the heart through the pulmonary veins.
Wiki User
∙ 13y ago
Wiki User
∙ 11y agoThe 2 types are:
1. Systemic circulation ( From the Left side of the heart to the rest of the body and back to the right side of the heart)
2. Pulmonary circulation ( From the right side of the heart- atrium and ventricle to the lungs and back)
The systemic circulation is concerned with the perfusion of tissues and organs with oxygenated blood rich in nutrients. It begins with oxygenated blood reaching the left atrium from the lungs via the pulmonary veins. This blood passes though the bicuspid (mitral) interventricular valve, into the left ventricle, and through the semi-lunar valves into the aorta during systole.
This circulation ensures that blood rich in oxygen and nutrients reach organs (including the heart via the coronary arteries). The blood travels through the aorta, arteries, arterioles, and extensive capillaries before being collected into the venous system back into right atrium.
The systemic circulation is a relatively extensive circulation so that the left ventricle has to pump harder to perfuse the distant organ systems (120/80mmHg)
The pulmonary circulation is concerned with the process of getting deoxygenated blood in the right ventricle through the pulmonary artery into the pulmonary capillaries for oxygenation and through the pulmonary veins into the left atrium.
The pulmonary circulation is relatively less extensive so that it is significantly lesser than that of the systemic circulation (20mmHg)
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