#Function of free nerve endings in skin skin#
Mechanoreceptors respond to physical force such as pressure (touch or blood pressure) and stretch.These receptors collect information concerning body position and the physical conditions of these locations.Ĭlassification by type of stimulus detected: Proprioceptors respond to stimuli occurring in skeletal muscles, tendons, ligaments, and joints.These receptors are the sensory neurons associated with the autonomic nervous system. Interoceptors (visceroceptors) respond to stimuli occurring in the body from visceral organs and blood vessels.These receptors include those for tactile sensations, such as touch, pain, and temperature, as well as those for vision, hearing, smell, and taste. Exteroceptors occur at or near the surface of the skin and are sensitive to stimuli occurring outside or on the surface of the body.Sense organs (such as the eyes and ears) consist of sensory neurons with receptors for the special senses (vision, hearing, smell, taste, and equilibrium) together with connective, epithelial, or other tissues.Encapsulated nerve endings are dendrites whose terminal ends are enclosed in a capsule of connective tissue.Free nerve endings are dendrites whose terminal ends have little or no physical specialization.Sensory receptors are classified by three methods: Sensory receptors are dendrites of sensory neurons specialized for receiving specific kinds of stimuli. This complexity allows you to be aware of your surroundings and take appropriate actions. The human sensory system is highly evolved and processes thousands of incoming messages simultaneously. One of the characteristics of a living organism is its ability to respond to stimuli. Quiz: Regulation of Urine Concentration.Quiz: Structure of the Digestive Tract Wall.Quiz: Function of the Respiratory System.
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