A person completely tears the Achilles tendon. Which stat...

A person completely tears the Achilles tendon. Which statement is MOST accurate about the immediate effect on the associated calf muscles?

hard

AThe calf muscles cannot generate force at all because actin and myosin stop working

The calf muscles may still contract internally, but their force cannot be effectively transmitted to the foot for normal plantarflexion

COnly the bones stop working; tendons are not involved in movement

DThe neuromuscular junction stops releasing acetylcholine immediately because the tendon is torn

EThe sarcomeres in the calf muscles permanently disappear

Explanation

A tendon rupture interrupts force transmission from muscle to bone. The muscle's contractile machinery can still activate, but movement is impaired because the 'cable' to the bone is broken.

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Back to Deck — Muscle Contraction, Muscle Tissue & Tendons

Source: entermedschool.org

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