Skeletal muscles are also called striped or striated muscle because they show alternate light and dark bands for example:
Correct answer: D. Triceps and biceps
- A. Intestinal muscles
- B. Triceps
- C. Biceps
- D. Triceps and biceps
Explanation
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. Example of skeletal muscles are biceps and triceps. Muscles of intestine are smooth muscles.
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About Support and Movement
Support and movement covers the axial and appendicular skeleton, bone structure, joints and the arrangement of skeletal muscles. Muscle contraction is explained through actin, myosin, sliding filaments, calcium ions and ATP, while arthritis is distinguished as a disorder of joints rather than a normal part of movement.
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