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the Ia fibres of the muscle spindles

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What is an injury caused by a muscle being overstretched?

An injury caused by a muscle being overstretched is called a muscle strain. It occurs when the muscle fibers are stretched beyond their normal limits, leading to tearing of the muscle fibers. Common symptoms include pain, swelling, and reduced range of motion.


What is an injury to a muscle or tendon?

An injury to a muscle or tendon is typically referred to as a strain or a sprain. A strain occurs when a muscle is stretched or torn, while a sprain occurs when a ligament is stretched or torn. These injuries can range from mild to severe, leading to pain, swelling, and reduced function in the affected area.


What is another name for a muscle pull?

Another name for a muscle pull is a muscle strain. It occurs when muscle fibers are stretched or torn, usually due to overexertion or sudden movements. Symptoms include pain, swelling, and limited range of motion.


What is excitation coupling and list the process?

Excitation coupling is the process by which an action potential in a muscle cell triggers the release of calcium ions from the sarcoplasmic reticulum, leading to muscle contraction. The steps of excitation coupling in muscle cells involve depolarization of the cell membrane, activation of voltage-gated calcium channels, release of calcium ions from the sarcoplasmic reticulum, and activation of the contractile proteins within the muscle cell.


List the Basic steps of simple reflex arc like the stretch reflex?

receptor: initiate impulse: receive something sensory neuron: will carry impulse from receptors to the central nervous system motor neuron: tranmits impulse away from central nervous system into effector internuncial neuron: carry impulse from pre- synaptic to post synaptic effector: muscles or glands