Question

Which of the following is not a characteristic feature of biceps muscle? (1)We are usually able to make it contract merely by thinking about it (2)It has alternate light and dark bands (3)lts muscle fibre taper at both ends (4)Its muscle fibres are bundled together in a parallel fashion

Answer 1

Answer:

option 1st is incorrect.....

Answer 2

Option C is correct i.e. Its muscle fiber taper at both ends.

• Biceps muscle fiber is tapered at both ends is not a characteristic of the biceps muscle.
• Muscle fibers are voluntarily in nature which means we can contract or relax them at our own will.
• It also has alternate dark and light. A light band is also called an isotropic band or I band and it is made up of actin protein.
• The dark band is also known as the anisotropic band which is made up of myosin protein.
• These bands are arranged in a parallel fashion.
• Sarcomere is the functional unit of muscle fiber.