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CNS mash exam 2
CNS mash exam 2 excluding cranial nerves and nuclei
Question | Answer |
---|---|
Name the region of the cerebellum described: Includes fastigial nucleus | Vestibulocerebellum, Spinocerbellum, |
Name the region of the cerebellum described: Afferents include the dorsal spinocerebellar tract | Spinocerebellum |
Name the region of the cerebellum described: Is phylogenically the oldest portion | Vestibulocerebellum |
Name the region of the cerebellum described: Is most important region for fine motor control | Pontocerebellum |
Name the region of the cerebellum described: Efferent terminate on the red nucleas | Spinocerbellum, Pontocerebellum |
Name the region of the cerebellum described: In general, effects muscles on the same side of the body | Vestibulocerebellum, Spinocerbellum, Pontocerebellum |
Name the region of the cerebellum described: Influences the motor cortices | Spinocerbellum, Pontocerebellum |
Name the region of the cerebellum described: Pathology likely results in truncal ataxia and nystagnius | Vestibulocerebellum |
Name the region of the cerebellum described: Especially important in large motor stereotyped movements | Spinocerbellum |
Name the region of the cerebellum described: Influences lower motor neurons by thee reticulospinal tracts | Vestibulocerebellum, Spinocerbellum |
Name the region of the cerebellum described: Receieves afferents from nucleus dorsalis | Spinocerbellum |
Name the region of the cerebellum described: Recieves the vast majority of its input indirectly from the cerebral cortex | Pontocerebellum |
Name the region of the cerebellum described: Afferents include cuneocerebellar fibers | Spinocerbellum |
Name the region of the cerebellum described: Deep nucleus receives inhibitory afferents from the cortex/purkinje cells | Vestibulocerebellum, Spinocerbellum, Pontocerebellum |
Name the region of the cerebellum described: Efferent fibers decussate in the superios cerebellar peduncle | Spinocerbellum, Pontocerebellum |
Name the region of the cerebellum described: Affects the lower motor neurons by the pontine and medullary reticulospinal tracts | Vestibulocerebellum, Spinocerbellum |
Name the region of the cerebellum described: Function could be affected by a lesion in the internal capsule | Pontocerebellum |
Name the region of the cerebellum described: AFfects the lower motor neurons through the rubrospinal tract | Spinocerbellum, Pontocerebellum |
Name the region of the cerebellum described: Granule cells of the corte recieve mossy fibers | Vestibulocerebellum, Spinocerbellum, Pontocerebellum |
Name the region of the cerebellum described: Includes the dentate nucleus | Pontocerebellum |
Name the region of the cerebellum described: Includes the interposed nucleus (Globose/Emboliform) | Spinocerbellum |
Name the region of the cerebellum described: Affects the lower motor neurons by the corticospinal tract | Spinocerbellum, Pontocerebellum |
Name the region of the cerebellum described: Affects the lowermotor neurons by the lateral vestibulospinal tract | Vestibulocerebellum, Spinocerbellum |
Name the region of the cerebellum described: Disturbances may result in speech problems | Pontocerebellum |
Name the region of the cerebellum described: Recieves afferents from the lateral cuneate nucleus | Spinocerbellum |
Name the region of the cerebellum described: Affects lower motor neurons be the medial longitudinal fasciculus. | Vestibulocerebellum, Spinocerbellum |
Name the region of the cerebellum described: Roughly equivalent to the archicerebellum | Vestibulocerebellum |
Name the region of the cerebellum described: Receives climbing fibers from the inferior olivary nucleus | Pontocerebellum |
Name the region of the cerebellum described: Receives afferents directly from the maculae | Vestibulocerebellum |
Name the region of the cerebellum described: Receives afferents from the mesencephalic nucleus | Spinocerbellum |
Name the region of the cerebellum described: Largely composed of neocerebellum | Pontocerebellum |
Name the region of the cerebellum described: Receives vast majority of afferents from reticular nuclei of brainstem | Pontocerebellum |
Name the region of the cerebellum described: Purkinje fibers of the cerebellar cortex terminate directly on brainstem nuclei | Vestibulocerebellum |
Name the region of the cerebellum described: Receives climbing fibers | Pontocerebellum |
Name the motor condition: Hyperkinetic autosomal dominant genetic disease is characterized by widespread destruction of the basal nuclei and the cerebrum. | Huntington's chorea |
Name the motor condition: Hyperkinetic disease characterized by slow movements, increased muscles tone, loss of facial expression, delayed initiation, and pill rolling tremor | Parkinson's disease |
Name the motor condition: Characterized by truncal ataxia and nystagmus | Flocculonodular Syndrome |
Name the motor condition: Violent involuntary flailing movements resulting from a lesion in contralateral subthalamic nucleus | Hemiballismus |
Name the motor condition: Involuntary movements of the tongue and face induced by antipsychotic drugs | Tardive Dyskinesia |
Name the motor condition: May develop following rheumatic fever | Syndenham's Chorea |
Name the motor condition: Characterized by increased muscle tone and decreased voluntary movements | Hypokinesia aka Parkinson's disease |
Name the motor condition: A decrease in olfactory sense may precede diagnosis by up to 4 | Parkinson's Disease |
The ganglion axon from the retina terminate on _____________ for eye movement | Superior colliculus |
The ganglion axon from the retina terminate on _____________ in the pathway for pupillary dilation in response to light. | Hypothalamus |
The ganglion axon from the retina terminate on _____________ in the pathway for the pupillary light response. (Constriction) | Superior colliculus |
The ganglion axon from the retina terminate on _____________ in the pathway for conscious visual awareness. | Lateral geniculate |
The ganglion axon from the retina receive afferent from _____________ in the retina. | the bipolar neurons |
Afferents to the right dentate nucleus: excitatory stimuli | left inferior olivary nucleus and left arcuate nuclei by the inferior cerebellar peduncle |
Afferents to the right dentate nucleus: excitatory stimuli | left pontine nuclei by the middle cerebellar peduncle |
Afferents to the right dentate nucleus: inhibitory stimuli | purkinje cells located in the pontocerebellum cortex |
Ganglion cell axons terminate on____________ in the pathway for vision | Lateral geniculate |
Ganglion cell axons terminate on____________ in the pathway for pupillary dilation. | Hypothalamus |
Ganglion cell axons terminate on____________ in the pathway for pupillary constriction. | Superior colliculus |
Ganglion cell axons terminate on____________ for endocrine responses to light. | Hypothalamus |
In general, purkinje cell axons of the cerebellum terminate on the ______ where they have______. | deep nuclei, inhibitory response. |
Vestibular nuclei project to the extraocular nuclei by the | Medial longitudinal fasciculus |
Vestibular nuclei project to the _________ for conscious awareness. | ventral posterior medial nucleus of the thalamus |
Deafness in the right ear is most likely caused by a problem in the | outer right ear, outside the CNS |
Receptive aphasia may result from an occlusion in the | Left middle cerebral artery |
As an example of descending auditory fibers, the ___________ projects to the Organ of Corti. | superior olivary nucleus |
In the basic auditory pathway, the medial geniculate recieves info from the from the ______________ and projects to area ____. | right and left inferior colli, area 41 and 42 |
Which two descending motor tracts, terminating only in the cervical cord are important for coordination of head and eye position? | Medial vestibulospinal tract, tectospinal tract |
Which sensory epithelium senses linear acceleration? | Maculae |
In the basic auditory pathwy, the right inferior colliculus recieves afferents from the _________ and sends info to the ____________. | right and left ventral and dorsal cochlear nuclei, right medial geniculate |
Which accessory auditory nucleus is required for the ability to discern distance and direction? | Superior olivary nucleus |
What nuclei forms the paleostriatum? | Globus pallidus |
Pathology which results in Parkinson's disease: | Substantia nigra |
Name the descending tract by which the vestibulocerebellum affects the extraocular nuclei: | Medial longitudinal fasciculus |
Name the descending tract by which the vestibulocerebellum affects the LMN of the lumbosacral spinal cord: | Lateral Vestibulospinal tract |
A person has a vascular lesion which gives signs and symptoms of both basal nuclear and pontocerebellar dysfunctions. Give the most likely location of the lesion: | Anterior limb of internal capsule, basal peduncle, basal pons |
Diziness and deafness in the right ear is damage to? | Right vestibulocochlear nerve |
What sensory epithelium responds to rotary movements of the head? | Crista Ampularis |
In general, info from the macula projects to the ________ portion of area ___. | posterior, 17 |
Which of the following is characteristic of disturbances in the vestibular system? | Truncal Ataxia and Nystagmus |
In the basic auditory pathway, the right inferior colliculus projects to the: | right medial geniculate |
Which one is true of the fovea centralis? | Is the area of highest visual acuity, contains only cones |
What nucleus lies adjacent to the anterior limb of the internal capsule? | Caudate |
The left lateral lemniscus is formed from the fibers originating on: | dorsal and ventral cochlear nuclei |
Two cell layers that separate in a detached retina: | Pigment and photoreceptor layers |
Why is the fovea centralis the area of highest visual acuity? | Only cones with no vessels, no convergence |
In the basic auditory pathway for conscious awareness, the right cochlear nuclei project to | the right and left inferior colliculus |
A person suffering unilateral hearing loss due to vascular lesion, also includes deficits in general sensation to head and body. Which artery is affected? | Posterios inferior cerebral artery |
The basilar membrane in the apical portion of the organ of corti vibrates maximally to: | low frequencies |
The lamallae of rods contain: | Rhodopsin |
Which reticular nuclei are required for conjugate eye movement? | gaze centers= Abducens and Occulomotor |
How do eyes move with stimulation of right area 8? | To the left |
A person develops a dramatic increase in appetite with weight gain and changes in behavior and rage. What is the site of the lesion? | Hypothalamus |
Dis location of the uncus may occlude: | posterior cerebral artery |
In general, olfactory ares send info to: | limbic areas |