Biol 121 Chapter 18 The Nervous System General And Special Senses

BIOL 121 CHAPTER 18 THE NERVOUS SYSTEM GENERAL AND SPECIAL SENSES Human Anatomy, 7e (Martini/Timmons/Tallitsch) Chapter 18 The Nervous System: General and Special Senses 1) All plasmalemmae A) respond to the same degree to all different types of stimuli. B) respond to changes in the extracellular environment. C) all respond to each different category of stimulus. D) All of the answers are correct. E) None of the answers are correct. 2) Sense organs include (the) A) eye. B) ear. C) olfactory organs. D) taste buds. E) All of the answers are correct. 3) The term "general senses" refers to the sensations of A) temperature. B) pain and proprioception. C) touch. D) pressure and vibration. E) All of the answers are correct. 4) General sensory receptors are A) concentrated at the ends of the limbs. B) distributed throughout the body. C) responsible for providing perceptions to the somatomotor cortex. D) able to interpret sensations of many different stimulus types. E) the eye, ear, and nose. 5) Information about the strength, duration, and movement of a stimulus is provided by (the) A) labeled line. B) receptive field. C) special senses. D) sensory coding. E) None of the answers are correct. 6) Which of the following is true of receptors? A) Each has a characteristic sensitivity. B) Each receptor is equally sensitive to several different types of stimuli. C) The most complex, specific, and sensitive receptors are free nerve endings. D) They are evenly distributed over all surfaces of the body. E) None of the answers are correct. 7) Special sensory receptors differ from simple receptors in that A) they are surrounded by accessory structures that enhance receptor sensitivity. B) they are restricted in the stimuli to which they respond. C) each can be stimulated by many different types of stimuli. D) they are found in more locations on the surface of the body. E) All of the answers are correct. 8) The fact that we cannot sense infrared radiation is related to A) our inability to see temperatures. B) our range of sensitivity. C) humans not having receptors for all types of stimuli. D) our inability to process radiation. E) None of the answers are correct. 9) How is a person's ability to localize a stimulus affected by the function of a single receptor field? A) Stimuli of all strengths are equally well localized. B) Localization from a single receptor field is not possible; many have to participate for localization to be possible. C) The larger the receptive field, the poorer the ability to localize the stimulus. D) The larger the receptor field, the greater the ability to localize the stimulus. E) By the receptive fields interaction with other receptive f 10) A person is unable to detect electromagnetic waves, except visible light, because of which of the following reasons? A) No receptors of a type necessary to register the stimuli exist in the body. B) The stimulus might be outside the range of sensitivity of the available receptors. C) The stimulus might irritate or stimulate all the available receptors and make interpretation impossible. D) The CNS might be unable to process a given stimulus. E) All of the answers are correct. 11) Examples of receptors that are always active are A) phasic receptors. B) tonic receptors. C) mechanoreceptors. D) tactile receptors. E) chemoreceptors.