Body Fluids And Circulation Ques 73

73. Systemic heart refers to: the portion of the heart that pumps blood to the systemic circulation.

[2003]

(a) the two ventricles together in the human heart.

(b) the heart that contracts under stimulation from nervous system.

(c) left auricle and left ventricle in higher vertebrates.

(d) entire heart in lower vertebrates.

Show Answer

Answer : c

Hints & Solutions

(c) Systemic heart refers to the part of the heart propelling blood through the systemic circulation specifically the left ventricle in higher vertebrates. Systemic circulation carries oxygenated blood away from the heart to the body and returns deoxygenated blood back to the heart. In this circulation, the blood leaves the heart, services the body’s cells and then reenters the heart. Blood leaves through the left ventricle to the aorta, the body’s largest artery.