Poorly conditioned, middle-aged peoplemay suffer a rupture of the calcaneal tendonwhen the foot is suddenly dorsiflexed, asin hitting the ground when jumping downfrom a height. Explain each of the followingsigns of a ruptured calcaneal tendon: (a)a prominent lump typically appears in thecalf; (b) the foot can be dorsiflexed fartherthan usual; and (c) the patient cannot plantarflex the foot very effectively

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Q: identify the skeletal attachments, action, and innervationof these muscles.

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A:

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A: The correct answer to this question is option E i.e. Recruitment.

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Q: How to identify a tear in the calcaneal tendon?

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Muscle Action

A change in the body or a bodily organ as a result of its functioning is referred to as an action. Muscle action can be defined as the specific movement of a bodily part generated by the contraction of a muscle. The muscle proteins actin and myosin are the important contractile proteins involved in muscle action. Muscle contraction, in addition to movement, serves several other important functions in the body, including posture, heat generation, and joint stability. Muscle contraction maintains posture, which includes standing and sitting.