What characteristic differentiates cardiac muscle cells from skeletal muscle cells?
A) sarcoplasmic reticulum
B) excitability
C) striations
D) intercalated discs

Question

Quizplus · Accepted Answer

Intercalated discs are unique to cardiac muscle cells and are not found in skeletal muscle cells. They facilitate synchronized contraction of the heart by allowing electrical impulses to pass rapidly between cells.

What Characteristic Differentiates Cardiac Muscle Cells from Skeletal Muscle Cells