Question

When observing muscle tissue under the microscope, what distinguishing feature can be found in cardiac muscle, but NOT skeletal muscle?

Answer 1

Cardiac muscle is only found in heart and skeletal muscle is found attached to bones.

When observing muscle tissue under microscope, different features found in cardiac muscle, but not in skeletal muscle are as follows:

• Skeletal muscles has long multinucleate fibers while cardiac muscles are mononucleate, with only one nucleus per fiber.

• The ends of cardiac muscle fibers have intercalated discs that are darker regions and they are absent in skeletal muscles.