Question

a triad is composed of a t - tubule and two adjacent terminal cisternae of the sarcoplasmic reticulum. how are these components connected?
potassium leak channels.
a series of proteins that control calcium release.
myosin cross - bridge binding sites.
voltage - gated sodium channels.

Explanation:

In muscle cells, the T - tubule and terminal cisternae of the sarcoplasmic reticulum in a triad are connected by a series of proteins that play a crucial role in controlling calcium release during muscle contraction. Potassium leak channels are involved in maintaining resting membrane potential, myosin cross - bridge binding sites are related to muscle contraction between myosin and actin, and voltage - gated sodium channels are important for the generation of action potentials.

Answer:

A series of proteins that control calcium release.