Question

Describe the role of muscled spindles and golgi tendon organs in providing feedback about muscle stretch and contraction

Answer 1

Golgi tendon organ(GTO) and muscle spindle—have a place with the sensory system and capacity to impact locomotion or movement . Two significant proprioceptors that assume a role in adaptability, the GTO and muscle spindle cooperate reflexively to control muscle firmness.
Muscle spindles invigorate reflexively a muscle contraction to forestall overstretching and muscle fiber harm, this is known as the stretch or myotatic reflex .While stretching the muscle spindle, an impulse is quickly sent to the spinal cord and reaction to get the muscle is gotten, for shielding it from being pulled powerfully or past an ordinary range. It is an extremely speedy impulse on the grounds that the impulse just needs to go to the spinal cord and back .The stretch reflex has two segments. The static part endures as long as the muscle is being stretched. The dynamic segment goes on for one minute because of the underlying abrupt increment in muscle length. The reason for muscle spindles and the stretch reflex is to shield your body from injury brought about by overstretching and to keep up muscle tone .This is a procedure that represses the stretch reflex in antagonistic pairs of muscles. An impulse is sent from the stretched muscle spindle when the stretch reflex is initiated, the engine neuron is part with the goal that the sign to agreement can be sent to the stretched muscle, while a sign to unwind can be sent to the antagonist muscles .
Spindles accordingly demonstrate how much the muscle must be actuated so as to beat a given resistance. As a heap builds, the muscle is stretched undeniably, and commitment of muscle spindles brings about more noteworthy actuation of the muscle. Muscles that perform exact developments have numerous spindles per unit of mass to help guarantee accurate control of their contractile movement.

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