Question

part d (4 of 6)
what is name given to the regularly spaced infoldings of the sarcolemma?
motor endplates
sarcoplasmic reticulum
transverse or t tubules
terminal cisternae

Explanation:

The sarcolemma is the plasma membrane of muscle cells. Transverse or T - tubules are the regularly spaced infoldings of the sarcolemma which help in the rapid transmission of electrical signals for muscle contraction. Motor endplates are the sites where motor neurons synapse with muscle fibers. The sarcoplasmic reticulum is an organelle that stores calcium ions. Terminal cisternae are dilated end - sacs of the sarcoplasmic reticulum.

Answer:

C. transverse or T tubules