In humans blood passes from the post caval to the diastolic right atrium of heart due to
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Human blood passes from post caval to right atrium
Explanation:
- Human blood is a system of circulation in body and transfer of oxygen from one to other tissues.
- The action of heart includes contractions and relaxations of the atria and ventricles. Contraction of the heart is called systole and relaxation is called diastole.
- The dynamics of blood flow in blood vessels is no exception and blood flows through the blood vessels along a pressure gradient, always moving from higher to lower pressure areas.
- Fundamentally, the pumping action of heart generates blood flow. The 'contraction of atria is initiated and activated by sinoatrial node which spreads waves of contraction across the wall of atria via muscle fibers at regular intervals.
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In ‘humans blood’ passes from the ‘post caval’ to the ‘diastolic right atrium of heart’ due to suction force.
Explanation:
- During the diastolic phase of the ‘right Atrium of the heart’, the right atrium is at a very low pressure.
- On the other hand the ‘postcaval vein’ is at considerately higher pressure than the right Atrium.
- As a fluid moves from the ‘region of higher pressure to region’ of lower pressure the blood moves from the postcaval region to the ‘diastolic right Atrium of the heart’.
- In addition to this, there are valves present in the postcaval vein which prevents backflow of blood.
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