Question

question 47
cardiac muscles are characterized by:
a lack of striations
b voluntary control
c intercalated discs
d multinucleated

Explanation:

Cardiac muscles have intercalated discs which are unique to them. Striations are present in cardiac muscles (so A is wrong). Cardiac muscles are involuntary (so B is wrong). Skeletal muscles are multinucleated, not cardiac muscles (so D is wrong).

Answer:

C. intercalated discs