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Sagot :
Answer:
When a muscle relaxes,
crossbridges stop forming and muscle elasticity returns the muscle to rest length.
Explanation:
Relaxation occurs when stimulation of the nerve stops. Calcium is then pumped back into the sarcoplasmic reticulum breaking the link between actin and myosin. Actin and myosin return to their unbound state causing the muscle to relax. Alternatively relaxation will also occur when ATP is no longer available.
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