EXERCISE 23 – GENERAL SENSATION OBJECTIVES 1. To describe the function and location of various types of general sensory receptors. 2. To define exteroceptor, interoceptor, and proprioceptor . 3. To demonstrate the density and distribution of tactile and thermoreceptors in the skin. 4. To define adaptation and negative afterimage . 5. To define referred pain and projection . NOTES: I. Types of sensory receptors on the basis of location: exteroceptor/interoceptor/proprioceptor Define and give examples of each type. II. Types of general sensory receptors on the basis of stimulus: Tactile receptors (touch and pressure): • hair root plexuses in skin • Merkel disc in skin • Meissner’s corpuscle in the skin • Pacinian’s corpuscle in the skin • Ruffini’s corpuscle in the skin • Krause’s corpuscle in lips, tongue, and genitals Thermoreceptors • free nerve endings in the skin Pain receptors • free nerve endings in the body Proprioceptors (muscle length and tension)
This is the end of the preview. Sign up
access the rest of the document.
This note was uploaded on 07/13/2011 for the course BIOL 2401 taught by Professor Watson during the Summer '10 term at Richland Community College.