Proprioceptor


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Related to Proprioceptor: kinesthesia

proprioceptor

[‚prō·prē·ə′sep·tər]
(control systems)
A device that senses the position of an arm or other computer-controlled articulated mechanism of a robot and provides feedback signals.
(physiology)
A sense receptor that signals spatial position and movements of the body and its members, as well as muscular tension.

Proprioceptor

 

a specialized sensory nerve terminal that is located in the musculoskeletal system, which includes skeletal muscles, tendons, and ligaments. Proprioceptors react to the contraction and tension or the relaxation and stretching of muscles. They belong to the group of mechanoreceptors.

In addition to free nerve terminals, proprioceptors include the following: muscle spindles, which consist of several thin and intrafusal muscle fibers entwined by spiral-like nerve terminals; Golgi’s corpuscles, which are found in tendons; and Pacini’s corpuscles, which are concentrated in the fascia, tendons, and ligaments. The extent to which a spindle contracts is regulated by the gamma motor system (gamma efferent nerve fibers)—processes of special motor neurons of the spinal cord. Muscle spindles are excited by a lengthening of fibers, while Golgi’s corpuscles, or tendon organs, are excited by the contraction of fibers. Impulses from spindles that reach the central nervous system facilitate the contraction of a particular muscle and inhibit the contraction of its antagonist. Impulses from tendon proprioceptors exert the opposite effect. Signals on the movement of body parts originate in proprioceptors; these signals are the main regulators of information that arrives from other sensory organs.

References in periodicals archive ?
Crayfish antennae as tactical organs: their mobility and the responses of their proprioceptors to displacement.
This process occurs in the cerebellum, which receives input from GTO and other proprioceptor axons ascending the spinal cord.
3] This cycle utilises a muscle's elastic and reactive properties to create a maximal force production, stimulating the joint proprioceptors to facilitate an increase in muscle recruitment.
Three systems in your body contribute to your balance by sensing your position in space: vision, inner ear and proprioceptors in the joints.
Proprioceptors and fast antennal reflexes in the ant Odontomachus (Formicidae, Ponerinae).
Supposing that posture is kept with a minimal expenditure of energy in healthy young subjects without ankle instability, data collected in this study suggest a different hypothesis: Kinesio Taping[R] could have a direct effect on ankle proprioceptors, improving monopodalic standing control through a reduction of muscular electrical activity.
It is defined as the awareness of the positioning and movement of one's body in space, by means of sensors called proprioceptors, located in muscles and joints throughout the body.
At firstit was part of neuromuscular dysfunction treatment (NDT) in which the flow of information was facilitated by stimulating the proprioceptors.
The effect of occlusion on body posture has been attributed to the convergence of afferents from the dental proprioceptors the ganglion of Scarpa and the facial muscular proprioceptors on nuclei of the brain stem.
The proprioceptive system is composed of muscles, tendons, and joints as well as proprioceptors by nociceptors, which are essential mechanisms for the protection and organization of the complex structures involved in human movement (3).
Response of muscle proprioceptors to spinal manipulative-like loads in the anesthetized cat.