NWHSU Mash GA 2 Quiz 4 Anatomy Midbrain Diencephalon
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2 paired bumps located on the inferior aspect of the DORSAL surface of the midbrain | colliculi
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Area 17 receives fibers from ___ | Superior colliculus
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Cranial nerve (name or number) that supplies the sphincter pupillae muscle | CN3 Occulomotor
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Cranial nerves attached to the midbrain | 3, 4
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Extrapyramidal motor nucleus located in the midbrain that is the site of pathology in Parkinson's. | Substantia Nigra
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General function of the neostriatum | Exrtrapyramidal motor
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Give the location of the inferior colliculis. Do NOT give corpora quadrigemini as your answer. | On the dorsal side of the midbrain, just inf. to the sup. Colliculis
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Group of fibers that connects the medulla and cerebellum | Inferior cerebellar peduncle
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Group of fibers that connects the pons with the cerebellum | Middle cerebellar peduncle
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IN the midbrain, corticospinal fibers are located in the ___ (be VERY specific) | Basal peduncle
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Level of CNS where nuclei for oculomotor nerve are located | Midbrain
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Midbrain nucleus that sends fibers to the medial geniculate | Inferior Colliculis
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NUCLEUS which sends fibers to area 17 of cerebral cortex | Superior colliculus
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Specific name given to that part of midbrain located between the cerebral aqueduct and the substantia nigra | Tegmentum
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Specific named part of the midbrain through which the corticospinal fibers pass | Basal peduncle
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Specific named part of the pons that forms the floor of the 4th ventricle; contains nuclei and tracts | Tegmentum/Dorsal Pons
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The superior and inferior colliculi (corpora quarigemini) are specifically located in the ______ portion of the _____ | Dorsal portion of Midbrain (Tectum)
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Which of the following are considered upper motor neurons? A. Caudate Nucleus B. Red Nucleus C. Mammillary Nucleus D. amygdaloid nucleus | Caudate and Red Nuclei
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Which of the following nuclei are located in the midbrain? A.nucleus gracilus B. Red Nucleus C. Inferior Olive D. Superior Colliculus | Red Nucleus, Superior Colliculus
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Area 17 of the cerebral cortex receiving fibers from ________. | Lateral geniculate
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Area of the DIENCEPHALON that contains the pineal gland | Epithalamus
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Area of the DIENCEPHALON that contains the substantia nigra and other motor nuclei | extrapyramidal motor nucleus
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Areas 3,1, 2 receive input from the ______ | VPL nucleus of thalamus
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Fibers from the inferior colliculus terminate on the ________ | Medial geniculate
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Fibers from the RIGHT nuclei gracilis and cuneatus terminate on the _____________ | Left ventral posterior nucleus of thalamus
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Fibers of the medial lemniscus terminate on the ____ | VPL nucleus of thalamus
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Fibers passing from the thalamus to area 3,1,2 are part of the ___ and are classified as ____ fibers | Internal capsule, projection
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In the general sensory pathways, all second order neurons terminate on the ________. | Ventral Posterior Nucleus of the Thalamus
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In the three neuron pathway for general sensation, the second order neuron from the right side terminates on the ____ (give side and nucleus) | Left ventral posterior nucleus of thalamus
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Nucleus involved in the visual pathway; the termination of the optic tract | Lateral Geniculate
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Part of thalamus involved with the auditory pathway. | Medial Geniculate
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Thalamic nucleus that sends information to visual cortex | Lateral geniculate body
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The mamillary nucleus is one of the nuclei of the _____ | Hypothalamus of diencephalon
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The Primary Auditory cortex receives information from the ______ nucleus. | Medial Geniculate
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What two groups of fibers terminate/synapse in the ventral posterior nucleus of the thalamus? | 2nd order spinothalamic nn.; 2nd order medial lemniscus
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