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NWHSU Mash GA2Q4AMD
NWHSU Mash GA 2 Quiz 4 Anatomy Midbrain Diencephalon
Question | Answer |
---|---|
2 paired bumps located on the inferior aspect of the DORSAL surface of the midbrain | colliculi |
Area 17 receives fibers from ___ | Superior colliculus |
Cranial nerve (name or number) that supplies the sphincter pupillae muscle | CN3 Occulomotor |
Cranial nerves attached to the midbrain | 3, 4 |
Extrapyramidal motor nucleus located in the midbrain that is the site of pathology in Parkinson's. | Substantia Nigra |
General function of the neostriatum | Exrtrapyramidal motor |
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 |
Group of fibers that connects the medulla and cerebellum | Inferior cerebellar peduncle |
Group of fibers that connects the pons with the cerebellum | Middle cerebellar peduncle |
IN the midbrain, corticospinal fibers are located in the ___ (be VERY specific) | Basal peduncle |
Level of CNS where nuclei for oculomotor nerve are located | Midbrain |
Midbrain nucleus that sends fibers to the medial geniculate | Inferior Colliculis |
NUCLEUS which sends fibers to area 17 of cerebral cortex | Superior colliculus |
Specific name given to that part of midbrain located between the cerebral aqueduct and the substantia nigra | Tegmentum |
Specific named part of the midbrain through which the corticospinal fibers pass | Basal peduncle |
Specific named part of the pons that forms the floor of the 4th ventricle; contains nuclei and tracts | Tegmentum/Dorsal Pons |
The superior and inferior colliculi (corpora quarigemini) are specifically located in the ______ portion of the _____ | Dorsal portion of Midbrain (Tectum) |
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 |
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 |
Area 17 of the cerebral cortex receiving fibers from ________. | Lateral geniculate |
Area of the DIENCEPHALON that contains the pineal gland | Epithalamus |
Area of the DIENCEPHALON that contains the substantia nigra and other motor nuclei | extrapyramidal motor nucleus |
Areas 3,1, 2 receive input from the ______ | VPL nucleus of thalamus |
Fibers from the inferior colliculus terminate on the ________ | Medial geniculate |
Fibers from the RIGHT nuclei gracilis and cuneatus terminate on the _____________ | Left ventral posterior nucleus of thalamus |
Fibers of the medial lemniscus terminate on the ____ | VPL nucleus of thalamus |
Fibers passing from the thalamus to area 3,1,2 are part of the ___ and are classified as ____ fibers | Internal capsule, projection |
In the general sensory pathways, all second order neurons terminate on the ________. | Ventral Posterior Nucleus of the Thalamus |
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 |
Nucleus involved in the visual pathway; the termination of the optic tract | Lateral Geniculate |
Part of thalamus involved with the auditory pathway. | Medial Geniculate |
Thalamic nucleus that sends information to visual cortex | Lateral geniculate body |
The mamillary nucleus is one of the nuclei of the _____ | Hypothalamus of diencephalon |
The Primary Auditory cortex receives information from the ______ nucleus. | Medial Geniculate |
What two groups of fibers terminate/synapse in the ventral posterior nucleus of the thalamus? | 2nd order spinothalamic nn.; 2nd order medial lemniscus |