ANATOMY

GENERAL ANATOMY

CARDIOVASCULAR SYSTEM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The heart generates its own contractions at a rate of ____ times per minute
A
100-200
B
80-120
C
40-60
D
60-100
Explanation: 

Detailed explanation-1: -In general, the normal heart rate in adults ranges between 60 and 100 beats per minute.

Detailed explanation-2: -At rest, the normal heart beats approximately 60 to 100 times every minute, and it increases when you exercise. To ensure an adequate blood supply around your body, the four chambers of your heart have to pump regularly and in the right sequence.

Detailed explanation-3: -Normally the heart beats 60 to 100 times per minute. The rate may drop below 60 beats per minute in people who exercise routinely or take medicines that slow the heart. If your heart rate is fast (over 100 beats per minute), this is called tachycardia. A heart rate slower than 60 is called bradycardia.

Detailed explanation-4: -Overview. Bradycardia (brad-e-KAHR-dee-uh) is a slow heart rate. The hearts of adults at rest usually beat between 60 and 100 times a minute. If you have bradycardia, your heart beats fewer than 60 times a minute.

Detailed explanation-5: -Normally at rest, as the electrical impulse moves through the heart, the heart contracts about 60 to 100 times a minute, depending on a person’s age. Each contraction of the ventricles represents one heartbeat.

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