Chapter 30

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

________is 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. touch b. vision c. smell d. hearing

Chemoreceptors play a role in the sense of________. a. touch b. vision c. smell d. hearing

In the ________, neurons are arranged like maps that correspond to different parts of the body surface. a. visual cortex b. retina c. organ of Corti d. somatosensory cortex

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 \(\mathrm{P}\)________. a. increases pain-related signals b. prevents perception of pain c. is the active ingredient in aspirin d. is a type of pain receptor

The organ of Corti contains receptors that signal in response to________ . a. heat b. sound c. light 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. optic nerve d. lens

The fovea________. a. is a blind spot b. adjusts the amount of light entering the eye c. integrates signals from many rod cells d. has a dense concentration of cone cells

________in the vestibular apparatus function in balance. a. Hair cells b. Rod cells c. Cone cells d. Neuroglia

________are chemical signals released by one individual that affect the behavior of another individual. a. Hormones b. Neurotransmitters c. Pheromones d. Endorphins

Match each structure with its description. ________rod cell ________cochlea ________lens ________sclera ________cone cell ________taste bud ________semicircular canals ________pinna ________vomeronasal organ a. protects eyeball b. detect head movements c. detects pheromones d. detects dim light e. contains chemoreceptors \(f . \quad\) focuses rays of light g. sorts out sound waves h. detects color i. collects sound waves