One unique anatomical feature of cardiac muscle...?

Question

...which isn’t seen in skeletal or smooth muscle, is

A. intercalated disks.

B. striations (stripes).

C. sarcosomes.

D. adenosine triphosphate.

Answer 1

Yepper the answer is A. these are actually gap junctions that electrically connect each individual cell so that the cells can contract as a unit.

Answer 2

A - presence of intercalated disks

Answer 3

A. intercalated disks these are within the cardiac muscle tissue itself