Asked by Camryn Council on Apr 28, 2024

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The sarcoplasmic reticulum will release calcium ions after the muscle impulses travel through the

A) sarcolemma.
B) neuromuscular junction.
C) tropomyosin.
D) axon terminal.
E) T tubule.

Sarcoplasmic Reticulum

Smooth endoplasmic reticulum of skeletal muscle cells; surrounds the myofibrils and stores calcium ions.

Calcium Ions

Electrically charged calcium atoms (Ca2+) that play a crucial role in various physiological processes, including muscle contraction, neurotransmitter release, and bone formation.

Muscle Impulses

Electrical signals that travel along the nerve fibers to stimulate muscle contraction.

  • Determine the entities and molecules responsible for the contraction of muscles and the conversion of energy.
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Verified Answer

AE
anadalay estradaMay 02, 2024
Final Answer :
E
Explanation :
The T tubules are invaginations of the sarcolemma that carry the muscle impulses deep into the muscle fibers. It is only after the impulses reach the T tubules that they trigger the sarcoplasmic reticulum to release calcium ions, which then allows the muscle fibers to contract.