The low-resistance pathway that permits electrical activity pass from cell-to-cell in myocardial tissue is the
A) desmosome.
B) septum.
C) gap junction.
D) T-tubule.
E) sarcoplasmic reticulum.

Question

Quizplus · Accepted Answer

Gap junctions are the low-resistance pathways that permit the spread of electrical activity from cell-to-cell in myocardial tissue. Desmosomes are cell junctions that provide mechanical support to cells, the septum is a dividing wall between chambers or organs, T-tubules are invaginations in the cell membrane of muscle cells that help transmit action potentials, and the sarcoplasmic reticulum is an organelle in muscle cells that releases calcium ions during muscle contraction. None of these are the primary low-resistance pathway for electrical activity in myocardial tissue.

The Low-Resistance Pathway That Permits Electrical Activity Pass from Cell-To-Cell