Question

explain blood circulation step by atep in human beings.​

Answer 1

Answer:

Blood circulation in human is done twice

Answer 2

STEPS OF BLOOD CIRCCULATION :-

1. The aorta stretches across the back of your heart and pumps blood both above and below your heart to your upper and lower body.

2. DEOXYGENATED blood returns to your heart through the SUPERIOR VENA CAVA and INFERIOR VENA CAVA to your RIGHT ATRIUM

3. Your heart beats to the signals of the SA NODE and AV NODE as the right atrium pumps it to the RIGHT VENTRICLE

4. Your RIGHT VENTRICLE pumps deoxygenated blood up to your PULMONARY ARTERY, where it heads to lungs to pick up oxygen

5. DEOXYGENATED blood BECOMES OXYGENATED and drops off waste

6. Oxygenated blood leaves the lungs and returns to the heart through the PULMONARY VEINS and enters the LEFT ATRIUM

7. The LEFT ATRIUM pumps blood to the LEFT VENTRICLE, and then it is pumped to the AORTA to do the same thing ALL OVER AGAIN