receptorshomeworkmonroestadler

14.1 Define sensory receptors. 274 Dendrites specialized to detect certain typed of stimuli Give examples of exteroceptors. 274 Taste, smell, vision, hearing and equilibrium Give examples of interoceptors. 274 Blood pressure, water salt balance and level of pH of the blood Which type of receptors only detect information and send information to the brain but do not regulate the body's homeostasis. 274 exteroceptors Describe (in detail) and give examples of each of the following receptor types...(274) Chemoreceptors Respond to chemical substances in the immediate vicinity/ indicates taste smell which detect external stimuli utilize chemoreceptors but so do various other organs that are sensitive to internal stimuli chemorecetors that monitor blood pH are located in the carotid arteries and aorta. If the pH lowers the breathing rate increases as more carbon dioxide is expired the blood pH rises. Food would stimulate the chemoreceptors pain receptors a type of chemoreceptor they are naked dendrites that respond to chemicals released by damaged tissues. Pain receptors are protective because they alert us to possible danger. Without the pain f appendicitis we might never seek the medical help needed to avoid a ruptured appendix Photoreceptors Respond to light energy our eyes contain photoreceptors that are sensitive to light rays and therefore provide us with a sense of vision. Stimulation of the photoreceptors known as rod cells results in black and white vision which stimulation of the photoreceptors known as cone cells results in color vision. Bright colors like neon would stimulate the photoreceptors Mechanoreceptors Stimulated by mechanical forces which most often result in pressure of some sort. When we hear airborne sound waves are converted to fluid borne pressure waves that can be detected by mechanoreceptors in the inner ear. Music, yelling people talking all stimulate the mechanoreceptors Thermoreceptors Stimulated by changes in temperature. Those that respond when temperatures rise are called warmth receptors and those that respond when temperatures lower are called cold receptors. Air conditioning would stimulate the cold receptors, themeroreceptors Explain in a five point paragraph the sense of taste (278), smell (278) or vision (280). In adults there are approximately 3000 taste buds that are primarily located on the tongue. There are also taste buds on the hard palate the pharynx and the epigloitts. There are at least four primary types of taste: sweet, sour, salty, bitter. The tip of the tongue is most sensitive to sweet tastes making it especially pleasurable to lick an ice cream cone. Even though our senses depend on sensory receptors the cortex integrates the incoming information and gives us our sensations