66. Which type of papillae is located in the posterior part of the tongue?A) CircumvallateB) FoliateC) FungiformD) Fungiform and circumvallateE) Papilla of Vater67. Which structure functions to ensure that each of the three sets of extraocular muscles is reciprocallyinnervated so that one muscle of the pair relaxes while the other contracts?A) Edinger-Westphal nucleusB) Medial longitudinal fasciculusC) Pretectal nucleusD) Superior colliculusE) Suprachiasmatic nucleus68. Which of the following retinal cells have action potentials?A) Amacrine cellsB) Bipolar cellsC) Ganglion cellsD) Horizontal cellsE) Photoreceptors 69. Which type of papillae is located in the folds along the lateral surfaces of the tongue?A) CircumvallateB) FoliateC) FungiformD) Fungiform and circumvallateE) Papilla of Vater70. The primary auditory cortex lies primarily in which lobe of the cerebral cortex?A) Frontal lobeB) Limbic lobeC) Occipital lobeD) Parietal lobeE) Temporal lobe71. The intraocular fluid of the eye flows from the canal of Schlemm into which of the followinglocations?A) Anterior chamberB) Aqueous veinsC) LensD) Posterior chamberE) Trabeculae72. The first central synapse for neurons transmitting the sweet taste sensation is in which of thefollowing structures?A) Dorsal sensory nucleus of vagus nerveB) Nucleus of solitary tractC) Nucleus of olfactory nerveD) Nucleus of hypoglossal nerveE) Nucleus of facial nerve73. Which brainstem structure plays a major role in determining the direction from which a soundoriginates?A) Cochlear nucleusB) Inferior colliculusC) Lateral lemniscusD) Superior olivary nucleusE) Trapezoid74. Visual contrast is enhanced due to lateral inhibition by which retinal cells?A) Amacrine cellsB) Bipolar cellsC) Ganglion cellsD) Horizontal cellsE) Photoreceptors75. Which of the following best describes the underlying basis of the dark current in the outer segment of the photoreceptors?A) Dark current results from the influx of sodium ions via c-AMP–dependent sodium channelsB) Dark current results from the influx of sodium ions via c-GMP–dependent sodium channelsC) Dark current results from the efflux of potassium ions via c-GMP–dependent potassiumchannelsD) Dark current results from the efflux of sodium ions via c-GMP–dependent sodium channelsE) Dark current results from the efflux of sodium ions via c-AMP–dependent sodium channels
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