Question

Cardiac muscle fibres are?
a) striated and voluntary
b) striated and involuntary
c) non-striated and voluntary
d) non-striated and involuntary​

Answer 1

Answer:

Involuntary

Cardiac muscles have the property of both the striated muscles (skeletal muscle) and unstriated muscles (smooth muscle). Cardiac muscle is involuntary like smooth muscle and has striations like skeletal muscle. Thus, the correct answer is option A.