Question

Which one of the following statements is incorrect?

• A. Heart muscles are striated and involuntary
• B. The muscles of hands and legs are striated and voluntary
• C. The muscles located in the inner walls of alimentary canal are striated and involuntary
• D. Muscles located in the reproductive tracts are unstriated and involuntary

Answer 1

Answer: (C)

Heart muscles are made of cylindrical, branched striated cells that are involuntary. They are the cardiac muscles.
The muscles of the hands and legs are voluntary and are made cylindrical and striated cells. They are the skeletal muscles.
However, muscles of alimentary canal are non-striated, spindle shaped, involuntary. These muscles are called smooth muscles.