Question

3. Below is the path of oxygenated blood. Which of the following will make the
path correct?
Lungs →
→ Aortic Valve
Left Atrium → Mitral Valve →
→ Other Parts of the Body
-
a. pulmonary vein, left ventricle, aorta
b. pulmonary artery, left ventricle, aorta
c. vena cava, left ventricle, pulmonary vein
d. pulmonary main artery, right atrium, left ventricle​

Answer 1

Answer:

Both vena cava passes the deoxygenated blood to the right atrium. Blood from right atrium enters right ventricle and pulmonary arteries carry deoxygenated blood from right ventricle to lungs for oxygenation. Two pulmonary veins come from each lung and pass O 2-rich blood to left atrium. Blood enters left ventricle from the left atrium. The left ventricle pumps blood into the aorta which in turn branches and delivers blood to the major body regions and organs. So, the correct sequence is C.