MUSCLE PHYSIOLOGY

Detailed explanation-1: -A free nerve ending is an unencapsulated dendrite of a sensory neuron; they are the most common nerve endings in skin. Free nerve endings are sensitive to painful stimuli, to hot and cold, and to light touch. They are slow to adjust to a stimulus and so are less sensitive to abrupt changes in stimulation.

Detailed explanation-2: -Free nerve endings are considered to be the somatosensory receptors for pain, temperature and crude touch. Proprioceptors are located in muscles, tendons, joint ligaments and in joint capsules.

Detailed explanation-3: -Pain Receptors are also called free nerve endings. These simple receptors are found in the dermis around the base of hair follicles and close to the surface of the skin (epidermis) where the hair emerges from the skin.

Detailed explanation-4: -First, there are specific pain receptors. These are nerve endings, present in most body tissues, that only respond to damaging or potentially damaging stimuli. Second, the messages initiated by these noxious stimuli are transmitted by specific, identified nerves to the spinal cord.