Examlex
What effect would you expect a sodium deficiency to have on the body's nerve impulses? Include an explanation of the role of sodium in nerve impulses in your response.
T Tubules
Tube-like structures in muscle cells that play a role in transmitting electrical impulses from the cell surface to the interior, triggering muscle contraction.
Sarcolemma
The fine transparent tubular sheath which envelops the fibers of skeletal muscles.
Sarcoplasmic Reticulum
A specialized type of endoplasmic reticulum in muscle cells that stores and releases calcium ions.
T Tubules
Tubular extensions of the cell membrane that penetrate into the center of skeletal and cardiac muscle cells, facilitating the transmission of electrical signals.
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