Multiple choice

Human heart is myogenic. What is the meaning of this statement?

  1. Heartbeat originates from nerves

  2. Heartbeat originates from a muscle

  3. Heartbeat is under hormonal control

  4. Heartbeat is under chemical control
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Heartbeat originates from a muscular patch in the right auricle known as SA node. Thus, heartbeat originates from a muscle.

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