Is human heart myogenic or neurogenic? - ProProfs Discuss
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Is human heart myogenic or neurogenic?

Is human heart myogenic or neurogenic?

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Asked by M. Jabrowsky, Last updated: Jun 08, 2021

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Samantha Stewart

Samantha Stewart

Love to do some charity work. Have a passion for writing and do it in my spare time

Samantha Stewart
Samantha Stewart, Philanthropist, Post Graduate, Corpus Christi

Answered Dec 12, 2018

The human heart is myogenic. Its circulatory system differs from those animals whose heart is nerogenic. In humans, the cardiac muscle contract spontaneously, that is, the heart contracts without needing any nervous input. Each electrical impulse to contract originates in muscle cells.

A neurogenic heart does require nervous input to contract: that is, a stimulus such as nerve innervation. In animals with an open circulatory system the sac-like or tubular heart has lateral openings which get closed when heart contracts and opens when heart relaxes. When the heart relaxes a vaccum is created to suck blood in the heart.

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