ch15 - Chapter 15 MULTIPLE CHOICE Choose the one...

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Unformatted text preview: Chapter 15 MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) The term general senses refers to sensitivity to all of the following, except A) temperature. B) vibration. C) pain. D) taste. E) touch. 1) 2) Which of the following is not one of the special senses? A) taste B) vibration C) smell D) hearing E) vision 2) 3) The general senses A) are localized to specific areas of the body. B) are located in specialized structures called sense organs. C) cannot generate action potentials. D) involve receptors that are relatively simple in structure. E) both A and B 3) 4) Which of the following can contribute to receptor specificity? A) characteristics of the receptor cell membrane B) the structure of the receptor cell C) accessory structures and tissues that shield the receptors from other stimuli D) accessory cells that function with the receptor E) any of the above 4) 5) Sensory transduction can involve which of the following? A) a stimulus altering the permeability of a receptor membrane B) the production of a receptor potential C) change in the flow of ions across the sensory membrane D) inhibition of neurotransmitter release E) any of the above 5) 6) Central adaptation refers to A) increases in conscious perception of a sensory stimulus. B) the decline in activity of peripheral receptors when stimulated. C) a characteristic of phasic receptors. D) inhibition of nuclei located along a sensory pathway. E) a change in motor receptivity of a neuron. 6) 7) Our perception of our environment is imperfect for all of the following reasons, except that A) abnormal receptor function can produce sensations that have no basis in fact. B) humans lack receptors for every possible stimulus. C) not all sensations lead to a perception. D) receptors respond in an all- or- nothing manner. E) our receptors have limited sensitivity. 7) 1 8) Which of the following is sometimes called "prickling pain"? A) chemicals B) extremes of temperature C) mechanical damage D) fast pain E) both B and D 8) 9) Endorphins can reduce perception of sensations initiated by A) nociceptors. B) chemoreceptors. C) mechanoreceptors. D) proprioceptors. E) thermoreceptors. 9) 10) Thermoreceptors A) for "cold" are structurally indistinguishable from those for "warm." B) are found within the dermis. C) are free nerve endings. D) A and B only E) A, B, and C 10) 11) A receptor that contains many mechanically gated ion channels would function best as a A) light receptor. B) chemoreceptor. C) tactile receptor. D) thermoreceptor. E) nociceptor. 11) 12) A fast- adapting mechanoreceptor in the papillary layer of the dermis that responds to fine touch is a A) root hair plexus....
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This note was uploaded on 09/21/2011 for the course BIOL 2401 taught by Professor Rameriz during the Spring '11 term at University of Texas at Dallas, Richardson.

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ch15 - Chapter 15 MULTIPLE CHOICE Choose the one...

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