HUMAN ANATOMY AND PHYSIOLOGY

 STRETCH RECEPTORS /PROPRIOCEPTORS ::

These are the mechanoreceptors found in muscle and tendons that generate impulses concerning muscle tone These receptors contain muscle spindles which are the wrappings of nerve fibres on the surfaces of small skeletal muscle cells called intrafucal fibres Sensory fibres from muscle 

spindles convey afferent impulses regarding muscle length to the spinal cord and brain Efferent fibre from the motor neurons of these two regions generate impulses which control skeletal muscle contraction Sensory endings that monitor the tension between tendons and muscle cells are called golgi tendon organs