MEDICAL PHYSIOLOGY

PHYSIOLOGY

BLOOD PHYSIOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following is the correct sequence of parts through which blood moves from the vena cava to the lungs?
A
Right ventricle, pulmonary semilunar valve, right atrium, tricuspid valve, right ventricle
B
Right atrium, pulmonary semilunar valve, right ventricle, tricuspid valve
C
Right ventricle, tricuspid valve, right atrium, pulmonary semilunar valve
D
Right atrium, tricuspid valve, right ventricle, pulmonary semilunar valve
Explanation: 

Detailed explanation-1: -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 O2-rich blood to left atrium.

Detailed explanation-2: -Blood enters the right atrium and passes through the right ventricle. The right ventricle pumps the blood to the lungs where it becomes oxygenated. The oxygenated blood is brought back to the heart by the pulmonary veins which enter the left atrium. From the left atrium blood flows into the left ventricle.

There is 1 question to complete.