which of the following is characteristic of cardiac muscle? cardiac muscle cells achieve tetany with every contraction. cardiac muscle cells are striated. neurons that innervate cardiac muscle tissue are under voluntary control. cardiac muscle fibers are faster than skeletal muscles. cardiac muscle fibers are multinucleated.

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12-12-2022
Biology

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which of the following is characteristic of cardiac muscle? cardiac muscle cells achieve tetany with every contraction. cardiac muscle cells are striated. neurons that innervate cardiac muscle tissue are under voluntary control. cardiac muscle fibers are faster than skeletal muscles. cardiac muscle fibers are multinucleated.

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RupaBera RupaBera · Answer 1 · 2022-12-17T09:46:59+01:00

Compared to skeletal muscle fibers, the characteristics of cardiac muscle cell membranes are different. Therefore, cardiac muscle cannot develop tetanus (sustained contraction).

What quality of heart muscle prevents tetany from happening?

Tetany is not present because summation cannot take place in heart muscle due to a long refractory period that lasts until relaxation is well advanced.

Has tetanic contraction been observed in heart muscle?

Compared to skeletal muscle fibers, the characteristics of cardiac muscle cell membranes are different. Therefore, cardiac muscle cannot develop tetanus (sustained contraction). This characteristic is crucial since a heart in tetany would not be able to pump blood.

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