Joint

 

Joint position senses are proprioceptors. They have two senses

Static position sense

The static position sense  depend on the range of movement of the joint. At the level of the skin, skin receptors or exteroceptors are used to determine joint position. At the mid range of joint position the important receptors are muscle spindles. At the extremes of joint angulation, paccinian corpuscles, Ruffini's end organs in ligaments and deep tissues are used.

Rate of movement sense

To determine rate of movement sense they are detected by Paccinian corpuscles and muscle spindles.

All above receptor signals pass through the spinal cord via the ventral and lateral spinothalamic tracts and enter the somesthetic system through the thalamic radiation to the somatosensory cortex

 

 

 

 

 

 

 

 

 

 

 

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