Modified muscle fibers encased in a connective sheat and functioning as stretch receptors.
Organ in a muscle that senses changes in muscle length, especially stretches. Rapid stretching of the muscle results in messages being sent to the nervous system to contract the muscle, thereby limiting the stretch.
is an encapsulated sensory organ that lies within muscles and conveys information to the spinal cord as well as receiving a specific input from the anterior horn gamma-motorneuron. It is important in setting muscle tone, mediating the tendon stretch reflex, as well as providing useful proprioceptive information to the CNS