PHYSIOLOGY
SKELETAL MUSCLE
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
Cardiac and skeletal muscle are both striated in appearance, while smooth muscle is not.
|
|
|
muscle tissue that is marked by transverse dark and light bands.
|
|
|
muscle that shows no cross stripes under microscopic magnification.
|
|
|
None of the above
|
Detailed explanation-1: -The striated appearance of skeletal muscle tissue is a result of repeating bands of the proteins actin and myosin that are present along the length of myofibrils . Dark A bands and light I bands repeat along myofibrils, and the alignment of myofibrils in the cell causes the entire cell to appear striated or banded.
Detailed explanation-2: -Skeletal muscles and cardiac muscles are called striated muscles due to the presence of alternate dark and light bands. When stained, this arrangement is visible as light and dark bands under the microscope. Hence, striations appear on striped muscles.
Detailed explanation-3: -The skeletal muscle is the only multinucleate and voluntary muscles with alternate light and dark striations .