THORAX ABDOMEN AND PELVIS

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MEDICAL

HEART AND PERICARDIUM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
____ of the heart has the thick muscular wall because it pumps the blood to the systemic circuit
A
left ventricle
B
Right ventricle
C
right atrium
D
left atrium
Explanation: 

Detailed explanation-1: -Left Ventricle. The left ventricle is the main powerhouse of the heart, having to pump blood all the way around the systemic circulation. Because of this it has the largest, most muscular walls of any of the chambers. In fact, it is three times as thick as the right ventricle.

Detailed explanation-2: -The left ventricle pumps blood to all parts of the body, while the right ventricle only pumps blood to the lungs. Therefore, the wall of the left ventricle is thicker than the right ventricle.

Detailed explanation-3: -Left ventricle which has to pump blood into the largest network of blood vessels and has to pumps blood against greater resistance than any other chambers of the heart. Hence, the left ventricle has the thickest muscular wall.

Detailed explanation-4: -The myocardium is the middle layer of the heart. It is the heart muscle and is the thickest layer of the heart.

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