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32 Cards in this Set
- Front
- Back
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A thermoreceptor in the skin converts heat energy to nerve impulses. This conversion is called _____.
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sensory transduction
The conversion of sensory energy to a change in membrane potential is sensory transduction. |
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Sensory receptor cells convert a stimulus
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into potential energy stored by the membrane.
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The receptor potential is the
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membrane potential produced in the receptor cell by sensory transduction.
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Sensory transduction occurs in the
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plasma membrane of sensory cells.
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Which of the following is an example of sensory adaptation by a receptor?
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You no longer feel the ring you put on your finger this morning.
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Which of the following options incorrectly pairs a class of sensory receptor with one of the stimuli it detects?
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thermoreceptors = touch
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Which of the following classes of sensory receptors is the most diverse?
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mechanoreceptors
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Which of the following options correctly lists the order in which structures within the ear transfer a sound wave during hearing?
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auditory canal, eardrum, hammer, anvil, stirrup, oval window
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Where is the organ of Corti?
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THE INNER EAR
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Which of the following structures is involved in the human sense of balance?
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the utricle
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The semicircular canals
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are arranged in three perpendicular planes
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Which of the following choices lists structures involved only in the sense of hearing?
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oval window, basilar membrane, organ of Corti
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Which of the following statements about the focusing of light by the eyes is true?
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Mammals focus by changing the shape of their lenses.
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Which of the following options correctly lists the order of structures through which light must pass on its way to the retina of the human eye?
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cornea, aqueous humor, pupil, lens
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Which of the following are changes that happen when your eyes focus on faraway objects?
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ciliary muscles relax, choroid moves away from the lens
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In order to accommodate near vision, the ligaments that are attached to the lens _____, which causes the lens to _____.
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slacken … become thicker and rounder
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As light passes into the human eye, it goes through which of the following first?
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cornea
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Which of the following components of the human eye forms the iris?
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choroid
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Astigmatism is due to _____.
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a misshapen cornea or lens
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A person whose eyeball is shorter than normal suffers from
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hyperopia.
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Which of the following statements regarding rods and cones is true?
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Rods are more sensitive to light than cones.
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"Supertasters" are individuals who
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typically have more food dislikes
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Which of the following sequences represents the path by which sound waves travel through the ear?
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External auditory canal, eardrum, oval window, cochlea
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Which of the following statements about the human ear is true?
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The brain interprets input from different regions of the basilar membrane as different pitches.
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True or false. Sound waves that enter the human ear are transmitted in fluid only in the inner ear.
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true
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The _____ is the region of the eye where photoreceptors are most highly concentrated.
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fovea
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What name is given to the tough layer that forms the "white" of the eye?
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sclera
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The _____ changes shape to focus light on the retina.
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lens
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What name is given to the opening that allows light into the interior of the eye?
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pupil
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Which of the following statements about photoreception is true?
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The brain combines signals from the different types of cone cells to differentiate the colors of the visible spectrum.
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Which part of the eye contains the densest concentration of cone cells?
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fovea
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True or false. The lens is the only structure in the vertebrate eye that focuses light onto the retina.
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false
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