MUSCLE PHYSIOLOGY

PHYSIOLOGY

SKELETAL MUSCLE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Smooth muscle
A
involuntary muscle, muscle that shows no cross stripes under microscopic magnification.
B
It is a form of striated muscle tissue which is under the voluntary control of the somatic nervous system.
C
complicated unit of striated muscle tissue.
D
None of the above
Explanation: 

Detailed explanation-1: -smooth muscle, also called involuntary muscle, muscle that shows no cross stripes under microscopic magnification. It consists of narrow spindle-shaped cells with a single, centrally located nucleus. Smooth muscle tissue, unlike striated muscle, contracts slowly and automatically.

Detailed explanation-2: -Skeletal muscles are long and cylindrical in appearance; when viewed under a microscope, skeletal muscle tissue has a striped or striated appearance.

Detailed explanation-3: -At a cellular level, smooth muscle can be described as an involuntary, non-striated muscle. Smooth muscle consists of thick and thin filaments that are not arranged into sarcomeres giving it a non-striated pattern. On microscopic examination, it will appear homogenous.

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