PATHOLOGY MCQ
BLOOD VESSELS
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
Left Atrium
|
|
|
Pulmonary Artery
|
|
|
the body
|
|
|
None of the above
|
Detailed explanation-1: -The right ventricle (RV) pumps oxygen-poor blood through the pulmonary valve (PV) into the main pulmonary artery (MPA). From there, the blood flows through the right and left pulmonary arteries into the lungs.
Detailed explanation-2: -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.
Detailed explanation-3: -The right ventricle fills and contracts to pump blood to the lungs. The right ventricle pumps blood through the pulmonary valve into the pulmonary artery. Once blood passes into the pulmonary artery the pulmonary valve closes to prevent backflow of blood into the right ventricle.