ANATOMY

GENERAL ANATOMY

CARDIOVASCULAR SYSTEM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Ventricles do ____ % of workload of the heart.
A
70%
B
30%
Explanation: 

Detailed explanation-1: -What do ejection fraction numbers mean? 55 to 70% – Normal heart function. 40 to 55% – Below normal heart function. Can indicate previous heart damage from heart attack or cardiomyopathy. Higher than 75% – Can indicate a heart condition like hypertrophic cardiomyopathy, a common cause of sudden cardiac arrest.

Detailed explanation-2: -The heart has four chambers: two atria and two ventricles. The right atrium receives oxygen-poor blood from the body and pumps it to the right ventricle. The right ventricle pumps the oxygen-poor blood to the lungs. The left atrium receives oxygen-rich blood from the lungs and pumps it to the left ventricle.

Detailed explanation-3: -The normal heart is a strong, hard-working pump made of muscle tissue. It’s about the size of a person’s fist. The heart has four chambers. The upper two chambers are the atria, and the lower two are the ventricles (Figure A).

Detailed explanation-4: -Each chamber in the heart can hold around 70 ml of blood since there are 4 chambers in the human heart, it can hold around 280 ml of blood.

There is 1 question to complete.