Chapter 30

The pain of heartburn is an example of a ________. a. somatic sensation b. visceral sensation c. sensory adaptation d. spinal reflex

________ is defined as a decrease in the response to an ongoing stimulus. a. Perception b. Visual accommodation c. Sensory adaptation d. Somatic sensation

Which is a somatic sensation? a. taste b. smell c. touch d. hearing e. a through f. all of the above

Chemoreceptors play a role in the sense of __________. a. taste b. smell c. touch d. hearing e. both a and b f. all of the above

Mechanoreceptors in the ________ send signals to the brain about the body's position relative to gravity. a. eye b. ear c. tongue d. nose

The middle ear functions in __________ . a. detecting shifts in body position b. amplifying and transmitting sound waves c. sorting sound waves out by frequency

Substance P _______. a. increases pain-related signals b. is a natural painkiller c. is the active ingredient in aspirin

The organ of Corti contains receptors that signal in response to ________. a. heat b. sound c. libght d. pheromones

Color vision begins with stimulation of __________ . a. hair cells b. rod cells c. cone cells d. neuroglia

Visual accommodation involves adjustment to the shape of the ________ . a. conjunctiva b. retina c. orbit d. lens

When you view a close object your lens gets __________. a. flatter b. rounder c. darker d. cloudier

Defective ________ cause color blindness. a. hair cells b. rod cells c. cone cells d. neuroglia

14\. _________ stimulation causes the pupil to widen. a. Sympathetic b. Parasympathetic

Match each structure with its description. _______rod cell _______cochlea _______lens _______sclera _______cone cell _______taste budd _______vestibular apparatus _______pinna _______vomeronasal organ a. protects eyeball b. functions in balance c. detects pheromones d. detects dim light e. contains chemoreceptor f. focuses rays of light g. sorts out sound waves h. detects color i. collects sound waves