Which of these statements applies to T tubules

Name: Which of these statements applies to T tubules
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Question

Quizplus · Accepted Answer

T tubules are deep inward projections of the sarcolemma in skeletal and cardiac muscle cells that allow for rapid transmission of the action potential from the cell surface to the central portions of the muscle fibre, leading to calcium release from the sarcoplasmic reticulum and muscle contraction. They do not form Z lines, store Ca²⁺, or allow for nutrient transport into the cell.

Which of These Statements Applies to T Tubules