After filtration the pulmonary veins carry oxygenated blood back to the left atrium. Then from there it drops into the left ventricle. The left ventricle is the largest chamber of all four. From here the oxygenated blood is circulated to the entire body.
The heart is a sophisticated muscle where all four chambers work in synchronisation. A gap of microseconds allows the chambers to be filled with blood for pumping again.
You might be thinking, if the blood circulation happens constantly, then what prevents the chambers from being overfilled?
Four valves that ere present in the heart help prevent the overfilling of chambers. These valves are located in different parts of the heart. Valves helps connect chamber to chamber & chamber to blood vessels. Blood volume & pressure within these chambers and blood vessels forces these valves to open, helping the blood move. These valves are:
- – Tricuspid valve – Separating and regulating blood flow between right atrium & right ventricle
- – Pulmonary valve – Separating and regulating blood flow between right ventricle & pulmonary artery
- – Mitral (bicuspid) valve – Separating and regulating blood flow between left atrium and left ventricle
- – Aortic valve – Separating and regulating blood flow between left ventricle and aorta.
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- Author –
- Amit Arora, Outdoor Leadership & Wilderness Medicine Educator.
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