Question

30.a blood vessels and circulation multiple choice

1. the first and last steps of systemic circulation are:

a. blood is pumped from the left ventricle into the aorta, blood drains from the superior and inferior venae cavae into the right atrium
b. blood is pumped from the right atrium into the superior vena cava, blood drains from the aorta into the left ventricle
c. blood drains into the venae cavae, blood leaves the aorta
d. blood flows through the pulmonary valve, blood returns through the bicuspid valve

Explanation:

Systemic circulation starts when the left ventricle pumps oxygen - rich blood into the aorta. It ends when de - oxygenated blood drains from the superior and inferior venae cavae into the right atrium.

Answer:

A. Blood is pumped from the left ventricle into the aorta, blood drains from the superior and inferior venae cavae into the right atrium