In excitation-contraction coupling, the transverse tubules function to:

a. conduct an action potential into the sarcoplasmic reticulum to cause release of calcium.
b. uptake and store excess Na+ and K+ from the sarcoplasm.
c. keep the thin and thick myofilaments separated.
d. provide structural support for sarcomeres.


a. conduct an action potential into the sarcoplasmic reticulum to cause release of calcium.

Anatomy & Physiology

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