NWHSU Mash CNS Test 2 auditory and visual
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| name the nuclei described: fibers terminate on inferior colliculus | dorsal and ventral cochlear nuclei
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| What sensory epithelium responds to rotary movements of the head | crista ampullaris
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| in the basic auditory pathway the right inferior colliculus receives afferents from _________ | left and right dorsal and ventral cochlear nerve
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| deafness in the left ear most likely results from a problem located where? | in the left periphery
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| in the basic auditory pathway, the left anterior and posterior cochlear nuclei terminate on the ________ | left and right inferior colliculus
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| which sensory epithelium senses linear acceleration and deceleration | macula sacculi
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| what is the basis of organization in area 41, 42 | tonotopic/frequency
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| Describe the deficit resulting from damage to the left auditory association cortex | receptive aphasia; you can hear incoming words but you cant put meaning to it
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| the left lateral lemniscus is formed from fibers originating on ________ nuclei | right and left dorsal and ventral cochlear nuclei
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| which accessory auditory nucleus is required for the ability to discern distance and direction | superior olivary nucleus
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| which accessory auditory nucleus terminates on the organ of corti | superior olive
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| name the nuclei described: receive fibers from pretectal nuclei in the pupillary light response | Edinger-westphal
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| in the pathway for pupillary dilation ganglion cells terminate on | hypothalamus
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| blindness in the left eye is most likely due to a lesion located ________ | in the left optic nerve
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| ganglion cells of the retina terminate on _______ in the pathway for conscious visual awareness | lateral geniculate
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| in the pathway for vision ganglion cells terminate on | lateral geniculate
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| where is the cortical representation of the left macular fields | left posterior, superior and inferior calcarine gyri
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| give two reasons why the fovea centralis is the area of highest visual acuity | no convergence; mostly cones
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| A person has visual blindness in the diagram below (lateral halfs of left and right), where is the visual pathway most likely occluded | optic chiasm
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| which two layers are seperated in a detached retina | pigmented layer and photoreceptive layer
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| A person has visual blindness in the diagram below (lateral halfs of left and right), what is the likely cause of this interruption | pituitary tumor
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| in general, information from the macula projects to the _____ portion of area 17 | posterior
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| in the pathway for pupillary constriction ganglion cell axons terminate on | superior colliculi
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| Which area of retina contributes to the very highest visual acuity | fovea centralis
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| The apical (opposite of the basal)end of the basilar membrane vibrates maximally to | low frequency
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| which portion of the visual pathway is most likely damaged (diagram shows lower right quadrant of both circles darkened)options are L/R optic tract, L/R temporal loop, LR straight fibers | L straight fibers
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| Ganglion cells of the retina: receive afferents from the ____neurons in the retina | bipolar
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| Ganglion cells of the retina: terminate on the _____for eye movement | superior colliculus for eye movement; lateral geniculate nucleus for visual perception;
pretectum pupillary light reflex; suprachiasmatic nucleus of the hypothalamus for diurnal rhythms and hormonal changes.
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| Consider an interruption of the left parietal (straight ) geniculocalcarine fibers. Darkent the areas of the diagram representing the areas of visual blindness | ?right lower quadrant darkened
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| Which retiuclar nuclei are required for conjugate eye movement | gaze centers pontine
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| how do the eyes move with stimulation of right area 8 | opposite direction to the stimuli
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| in general, olfactory areas send information to the ____areas | limbic
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| The ___is a large group of fibers connecting the hippocampal formation with the maxillary nucleus and is part of the ____system | fornix, limbic
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| the lamellae of rods contain | rhodopsin
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| what muscles open and close eye lids | levator palpebrae superioris mm, orbicularis oculi mm
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| a vascular lesion results in unilateral hearing loss and deficits in general sensation to the head and body. which artery is involved | pica (posterior inferior cerebellar artery)
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| a person has visual blindness in the darkened areas (right half of both), what fibers of the visual pathway are interrupted | left optic tract
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| a person has visual blindness in the darkened area below (left whole): location of lesion, if light shone in L eye, right respond? if light shone in R eye, left respond? | L eye, No, Yes
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| consider an interruption of left parietal (straight) fibers, darken VISUAL blindness | darken lower right quadrant
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| what is the function of the pigment cells of the retina | absorb light, decrease light scattering
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AnatomyMash
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