Term
. Which of the following statements is true?
A. Our senses can perceive a wide range of energies.
B. Different modalities of sensations have different types of impulses.
C. Sensory receptors transduce different forms of physical energy to nerve impulses.
D. The brain cannot distinguish between impulses of cold and heat. |
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Definition
| C. Sensory receptors transduce different forms of physical energy to nerve impulses. |
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Term
. Damage to cutaneous receptors would limit the ability to detect all of the following except
A. pain.
B. thermal sensations.
C. body position.
D. touch. |
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Definition
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Term
Which type of receptor responds to physical deformation of its cell membrane?
A. chemoreceptors
B. photoreceptors
C. thermoreceptors
D. mechanoreceptors |
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Definition
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Term
. Which of the following is NOT a cutaneous receptor?
A. muscle spindle
B. touch receptor
C. heat receptor
D. pain receptor |
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Definition
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Term
. Nociceptors may be either myelinated or unmyelinated and function to carry pain sensations to the spinal cord using ____________ and ________________ as neurotransmitters.
A. substance P, norepinephrine
B. glutamate, acetylcholine
C. substance P, glutamate
D. acetylcholine, substance P |
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Definition
| C. substance P, glutamate |
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Term
. The capsaicin receptor serves as both an ion channel and a receptor for the molecule in chili peppers that causes sensations of
A. heat and pain.
B. cold and pain.
C. pressure and pain.
D. heat and pressure. |
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Definition
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Term
Acute itch is produced by _______ binding to its receptors.
A. capsaicin
B. menthol
C. histamine
D. glutamate |
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Definition
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Term
As ____________ increases, the two-point threshold decreases.
A. receptor number
B. receptor density
C. receptor sensitivity
D. receptor sensation |
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Definition
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Term
. Sensations are sharpened via
A. two-point discrimination.
B. adaptation.
C. lateral inhibition.
D. phantom limb. |
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Definition
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Term
The ________________ phenomenon refers to amputees reporting sensations in limbs that are no longer there.
A. phantom limb
B. lateral inhibition
C. referred pain
D. adaptation |
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Definition
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Term
. Which of the following is true of olfaction?
A. There may be as many as a 1000 different olfactory receptor proteins.
B. Humans can distinguish up to 10,000 different odors.
C. Humans have the most acute sense of smell of all the mammals.
D. All of the choices are correct. |
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Definition
| B. Humans can distinguish up to 10,000 different odors. |
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Term
. Which of the following is true of vestibular nystagmus?
A. It consists of involuntary oscillations of the eyes.
B. It may be a symptom of Ménière's disease.
C. It is loss of equilibrium.
D. All of the choices are correct. |
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Definition
| D. All of the choices are correct. |
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Term
Which of the following is the correct neural pathway for hearing?
A. vestibulocochlear nerve, inferior colliculus, medulla oblongata, thalamus, temporal lobe
B. vestibulocochlear nerve, medulla oblongata, inferior colliculus, thalamus, temporal lobe
C. vestibulocochlear nerve, thalamus, inferior colliculus, medulla oblongata, temporal lobe
D. None of the choices is correct |
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Definition
| B. vestibulocochlear nerve, medulla oblongata, inferior colliculus, thalamus, temporal lobe |
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Term
. Pupil diameter would be increased by
A. contraction of the circular muscles.
B. contraction of the ciliary body.
C. contraction of the superior rectus muscle.
D. contraction of the radial muscles. |
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Definition
| D. contraction of the radial muscles. |
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Term
. What condition occurs when the eyeball is too short and the focal point appears behind the eyeball?
A. astigmatism
B. myopia
C. hyperopia
D. presbyopia |
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Definition
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Term
. ______________ occurs when there is significant asymmetry of the cornea and/or lens.
A. Myopia
B. Hyperopia
C. Astigmatism
D. Presbyopia |
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Definition
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Term
. Within the eye, electrical impulses pass from
A. photoreceptors to ganglion cells to bipolar cells.
B. ganglion cells to bipolar cells to photoreceptors.
C. photoreceptors to bipolar cells to ganglion cells.
D. bipolar cells to photoreceptors to ganglion cells |
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Definition
| C. photoreceptors to bipolar cells to ganglion cells. |
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Term
Different layers of the __________________ analyze input from cones (and rods) differently such that one layer can add input from L and M cones to obtain information about light intensity, while another could subtract such input to obtain red-green color information.
A. hypothalamus
B. superior colliculi
C. lateral geniculate body nucleus
D. red nucleus |
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Definition
| C. lateral geniculate body nucleus |
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Term
. Eye movements are regulated by information sent to the
A. lateral geniculate body.
B. hypothalamus.
C. inferior colliculus.
D. superior colliculus. |
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Definition
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Term
Vision would be impaired by
A. damage to the superior colliculus.
B. ablation of the medial geniculate nucleus.
C. damage to the temporal lobe.
D. damage to the vestibulocochlear nerve. |
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Definition
| A. damage to the superior colliculus. |
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