What scheme of circulation of red blood cell in the human body?

Answer 1

Right atrium through the tricuspid valve

to the RIGHT VENTRICLE through the PULMONARY SEMILUNAR valve

to the pulmonary trunk

to the LUNGS

to the capillary beds of the lungs

to the PULMONARY VEINS

to the LEFT ATRIUM of the heart through the BICUSPID (MITRAL) valve

to the LEFT VENTRICLE through the AORTIC SEMILUNAR valve

to the AORTA

to the systemic arteries

to the CAPILLARY BEDS of the tissues

to the systemic veins

to the SUPERIOR AND INFERIOR VENA CAVA

and CORONARY SINUS entering the right atrium of the heart

Answer 2

Circulation of blood refers to its continual flow from the heart, through branching arteries, to reach and traverse the microscopic vessels in all parts of the body, reconverging in the veins and returning to the heart, to flow thence through the lungs and back to the heart to start the circuit again.

Answer 3

Red blood cells circulate in the systemic and pulmonary circuits of the cardiovascular system.