Cardiac muscle
A)is multinucleated.
B)excites itself.
C)contains only a few mitochondria.
D)partially lines the intestines.

Question

Quizplus · Accepted Answer

Cardiac muscle is unique in that it can spontaneously excite itself, meaning it does not require external stimulation from nerves. This property allows the heart to beat independently of outside influences. Cardiac muscle fibers are typically mononucleated, unlike skeletal muscle fibers which are multinucleated. Additionally, cardiac muscle contains a high density of mitochondria due to its high energy demands. It does not line the intestines.

Cardiac Muscle