Senses+JO


 * 14.1**

Sensory receptors are dendrites specialized to detect certain types of stimuli.
 * Define sensory receptors. 274**

Exteroceptors are sensory receptors that detect stimuli from outside the body. (ex: taste, smell, vision, hearing, and equilibrium.)
 * Give examples of exteroceptors. 274**

Interoceptors receive stimuli from inside the body. (ex: pressoreceptors, blood pressure change responders; osmoreceptors, monitors of pH in blood)
 * Give examples of interoceptors. 274**

exteroceptors do not get involved with homeostasis but continually send messages to the central nervous system regarding environmental conditions.
 * Which type of receptors only detect information and send information to the brain but do not regulate the body's homeostasis. 274**

chemoreceptors** Respond to chemicals in the immediate vicinity, examples such as taste and smell. they also monitor blood pH and are located in the carotid arteries and aorta. if pH lowers breathing rate increases.
 * Describe (in detail) and give examples of each of the following receptor types...(274)

aka: nociceptors... a type of chemoreceptor. they are naked dendrites that respond to chemicals released by damaged tissue. they are protective because they warn of possible danger.
 * pain receptors**

Responsive to light energy. Eyes contain photoreceptors that are sensitive to light rays there by providing us with a sense of vision. rod cells result in black and white. cone cells result in color.
 * photoreceptors**

stimulated by mechanical forces, a pressure of some sort. ex: when we hear, airborne sound waves are converted to fluid pressure on our ears. The help us with balance, by detecting fluid pressure waves, changes in gravity and motion, the receptors are located in the vestibule and semicircular canals of the inner ear. touch also depends on this pressure receptor. receptors responding to stretching.
 * mechanoreceptors**

Located in the hypothalamus and skin are stimulated by changes in temperature. the detectors of an increase in temp are warmth receptors, vice versa: cold receptors.
 * thermoreceptors**


 * Explain in a five point paragraph the sense of taste (278), smell (278) or vision (280).**