Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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List everything that would happen if the cardiac muscles turned into skeletal muscles.

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If cardiac muscles were to suddenly transform into skeletal muscles, several significant consequences and physiological changes would occur as below:-


1) Loss of Autonomic Regulation:

Cardiac muscles are regulated by the autonomic nervous system, which adjusts heart rate in response to the body's needs. With skeletal muscles taking over, this regulatory system would thus no longer function, potentially causing irregular heart rhythms and other cardiac problems and diseases.


2) Impaired Blood Flow:

Skeletal muscles are not designed to pump blood like the heart. This transformation would result in inadequate blood circulation, leading further to a lack of oxygen and nutrients reaching various body tissues, potentially causing organ failure and damage .


3) Loss of Involuntary Control:

 Cardiac muscles are involuntary and contract rhythmically without conscious control, while skeletal muscles are under voluntary control. This transformation would result in the loss of the heart's ability to beat independently, leading to potential cardiac arrest further .


4) Disruption of Heart Function:

The heart's rhythmic contractions cease, leading to a complete breakdown of the heart's pumping function. This would result in a lack of blood circulation throughout the body thus causing severe consequences .

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