NEET BIOLOGY

HUMAN PHYSIOLOGY

BODY FLUIDS AND CIRCULATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The term that means heart contraction is ____
A
diastole
B
systole
C
tachycardia
D
fibrillation
Explanation: 

Detailed explanation-1: -Cardiac cycle events can be divided into diastole and systole. Diastole represents ventricular filling, and systole represents ventricular contraction/ejection. Systole and diastole occur in both the right and left heart, though with very different pressures (see hemodynamics below).

Detailed explanation-2: -In heart. This process is called the cardiac cycle. The period of relaxation is called diastole. The period of contraction is called systole.

Detailed explanation-3: -The cardiac cycle is essentially split into two phases, systole (the contraction phase) and diastole (the relaxation phase). Each of these is then further divided into an atrial and ventricular component.

Detailed explanation-4: -Meaning: Gorgeous. Glittering and beautiful. A beautiful pattern in a textile.

Detailed explanation-5: -The top number, or systolic pressure, refers to the pressure inside the artery when the heart contracts and pumps blood through the body. The bottom number, or diastolic pressure, refers to the pressure inside the artery when the heart is at rest and is filling with blood.

There is 1 question to complete.