Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Wittich CNS exam 2
FML
| Question | Answer |
|---|---|
| Parasympathetics to the heart | ambiguus |
| Parasympathetics to the ileum | dorsal motor nucleus |
| Fibers terminate on the pterygopalatine ganglion | superior salivatory/lacrimal |
| Sensory nuclei supplied by the posterior inferior cerebellar artery | nucleus of the spinotrigeminal tract |
| Receives afferents from the ipsilateral lateral gaze center | abducens |
| Parasympathetic fibers join the glossopharyngeal nerve | inferior salivatory |
| Motor to skeletal muscle of the larynx, pharynx, and esohpagus | ambiguus |
| Receives chemoreceptor and barroreceptor afferents | solitarius, inferior part |
| Receives afferents from pretectal nuclei | Edinger - Westphal |
| Receives taste afferents | Solitarius, superior part |
| Supplied by the anterior spinal artery | hypoglossal |
| Parasympathetics to the stomach | Dorsal motor nucleus |
| Receives afferents from the fastigial nucleus | Vestibular |
| Motor to skeletal muscles of the larynx | ambiguus |
| parasympathetics to the heart | ambiguus |
| Receives afferents from the tongue | Solitarius, superior part |
| Efferent fibers terminate on the pterygopalatine ganglion | Superior salivatory/lacrimal |
| Fibers terminate on the inferior colliculus | Cochlear nuclei, dorsal and ventral |
| fibers terminate on the ventral posterior medial nucleus of the thalamus | Solitarius, superior part |
| Receives fibers from pretectal nuclei in the pupillary light response | Edinger - Westphal |
| Efferent Fibers join the glossopharyngeal nerve | Inferior Salivatory & ambiguus |
| Motor to muscles derived from arches III-VI | ambiguus |
| Fibers pass posterior to the abducens nucleus | Facial motor |
| Located at the same brainstem level as the superior colliculus | Trochlear |
| Efferents to bilateral muscles | Solitarius, Superior/rostral part |
| Receives chemoreceptor and barroreceptor afferents | Solitarius, caudal/inferior part |
| Innervates muscles derived from Arch II | Facial Motor |
| Receives cortical afferents ONLY from the contralateral cortex | Facial Motor (Lower half) |
| Receives afferents from the contralateral lateral gaze center | abducens |
| Fibers of the facial motor nucleus pass posterior to it | Trigeminal motor |
| At the same brainstem level as the inferior colliculus | Inferior Salivatory |
| Efferent fibers pass between the olive and the pyramid | Abducens |
| Innervates muscles derived from Arch I | Edinger - Westphal |
| Functional lobes of the cerebellum | |
| Especially important in stereotyped movements | Spinocerebellum |
| Especially important in fine motor control | Pontocerebellum |
| Receives afferents from nucleus dorsalis | Spinocerebellum |
| *Function could be affected by a lesion in the internal capsule | Vestibulocerebellum & Spinocerebellum & Pontocerebellum (i think all) |
| *Most of its afferents come from the cerebral cortex via reticular nuclei | Spinocerebellum |
| Affects the lower motor neurons through the rubrospinal tract | Spinocerebellum & Pontocerebellum |
| Receives afferents directly from the maculae | Vestibulocerebellum |
| Granules cells of the cortex receive mossy fibers | Vestibulocerebellum & Spinocerebellum |
| Deep nuclei receive inhibitory stimuli from the purkinje cells | Vestibulocerebellum & Spinocerebellum & Pontocerebellum |
| Associated with the fastigial nucleus | Vestibulocerebellum & Spinocerebellum |
| Receives afferents from the lateral cuneate nucleus | Spinocerebellum |
| Affects lower motor via the medial longitudinal fasciculus | Spinocerebellum |
| *Efferent fibers decussate in the superior cerebellar peduncle | Spinocerebellum & Pontocerebellum |
| Associated with the fastigial nucleus | Vestibulocerebellum & Spinocerebellum |
| A lesion would likely result in nystagmus and truncal ataxia | Vestibulocerebellum |
| Disturbances may result in speech problems | Pontocerebellum |
| *Functions may be affected by a lesion in the internal capsule | Vestibulocerebellum & Spinocerebellum & Pontocerebellum (i think all) |
| Includes the interposed nuclei (globose & emboliform) | Spinocerebellum |
| Roughly equivalent to the archicerebellum | Vestibulocerebellum |
| The oldest part of the cerebellum (archicerebellum) | Vestibulocerebellum |
| *Most of its afferents come from the cerebral cortex via reticular nuclei | Spinocerebellum |
| Receives afferents from the lateral cuneate nucleus | Spinocerebellum |
| Affects the lower motor neurons via the lateral vestibulospinal tract | Vestibulocerebellum |
| Receives afferents from the nucleus dorsalis | Spinocerebellum |
| Purkinje fibers of the cerebellar cortex terminate directly on brainstem nuclei | Vestibulocerebellum |
| Receives climbing fibers | Pontocerebellum |
| Purkinje fibers inhibit deep nuclei | Vestibulocerebellum & Spinocerebellum & Pontocerebellum |
| Associated with the globose/emboliform nuclei (interposed nuclei) | Spinocerebellum |
| Affects lower motor neurons through the rubrospinal tract | Spinocerebellum & Pontocerebellum |
| *Efferents from the deep nuclei decussate in the superior cerebellar peduncle | Spinocerebellum & Pontocerebellum |
| Projects to the Vestibular nuclei | Vestibulocerebellum & Spinocerebellum |
| Affects lower motor neurons through the rubrospinal and corticospinal tracts | Spinocerebellum & Pontocerebellum |
| lesions would likely result in truncal ataxia and nystagmus | Vestibulocerebellum |
| Deep nucleus receives inhibitory afferents from the cerebellar cortex | Vestibulocerebellum & Spinocerebellum & Pontocerebellum |
| Afferents relay vast amounts of information from the contralateral cerebral cortex | Pontocerebellum |
| Affects the lower motor neurons via the pontine and medullary reticulospinal tracts | Vestibulocerebellum & Spinocerebellum |
| break | |
| A person has a vascular lesion which interrupts the LEFT temporal loop fibers. Darken the blind VISUAL areas. | Upper right 1/4th on both eyes |
| Which 2 layers separate in a detached retina? | Photoreceptive layer and pigment layer |
| Which accessory auditory nucleus is required to discern distance and direction | Superior Olivary Nucleus |
| In most people, receptive aphasia would result from an occlusion in the __________ artery | middle cerebral |
| Deafness in the right ear is most likely caused by a problem located __________ | peripheral right ear |
| The left lateral lemniscus is formed from fibers originating on __________ | R/L Dorsal & Ventral Cochlear nuclei |
| What nucleus lies adjacent to the anterior limb of the internal capsule | Globus Pallidus & Caudate |
| What is the basis of organization in areas 41 & 42 | Tonotopic (organized by frequency) |
| What sensory epithelium responds to rotary movements of the head | Crista ampullaris |
| 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 Colliculi |
| A person has visual blindness on the lateral half of both eyes. Where is the visual pathway most likely interrupted | Optic chiasm |
| What is a likely cause of this interruption | Pituitary Tumor |
| A person has visual blindness in the entire right eye. What is the most likely location of the problem | Right Optic Nerve |
| In general, information from the macula projects to the __________ portion of area 17 | Posterior |
| What nucleus/nuclei form/s the paleostriatum | globus pallidus |
| Efferents from vestibular nuclei project to...(7) | 1. Nuclei of CN III IV & VI 2. LMN (Medial and Lateral Vestibulospinal tracts) 3. Fastigial nucleus 4. Vestibulocerebellar cortex 5. Spinocerebellar cortex 6. Ventral Posterior Medial nucleus of thalamus 7. Reticular nuclei |
| Afferents to vestibular nuclei are...(6) | 1. Vestibular apparatus 2. Extraoccular Nuclei (Medial Longitudinal Fasciculus) 3. Nuclei of CN III, IV, and VI 4. Purkinje fibers from vestibulocerebellar cortex 5. Fastigial nucleus 6. Reticular nuclei |
| Vestibulocerebellum affects extraocular nuclei by what descending tract | medial longitudinal fasciculus |
| Vestibulocerebellum affects LMN (Lower Motor Neuron) of the lumbosacral spinal cord by what descending tracts | lateral vestibulospinal & reticulospinal |
| In general, the purkinje fibers of the cerebellar cortex terminate on __________ upon which they have an __________ influence | deep nuclei; inhibitory |
| A person has a vascular lesion which gives signs and symptoms of both BASAL NUCLEAR and PONTOCEREBELLAR dysfunctions. Where is the most likely location of the lesion | Anterior limb of Internal Capsule |
| A person complains of dizziness and deafness in the R ear. Where is the problem | R Vestibulocochlear nerve |
| Which 2 descending motor tracts terminating only in the cervical cord are important for coordination of head and eye position | Tectospinal & Medial Vestibulospinal |
| Occlusion of the right labyrinthine artery may result in what two things | Kinetic ataxia & hearing loss in the right ear |
| The fovea centralis has only ______ and is the area of __________ | cones; highest visual acuity |
| The ganglion axon from the retina terminates on __________ in the pathway for conscious visual awareness | Lateral Geniculate |
| The ganglion axon from the retina terminates on __________ in the pathway for consensual pupillary light response | Superior Colliculi |
| The ganglion axon from the retina terminates on __________ in the pathway for pupillary dilation | Hypothalamus |
| In most people, receptive aphasia may result from an occlusion in the __________ artery | Middle Cerebral (LEFT most common) |
| Deafness in the right ear is most likely caused by a problem located __________ | Right ear, periphery |
| In the basic auditory pathway, the right inferior colliculus projects to the __________ | Right Medial Geniculate |
| What are three characteristics of disturbances in the vestibular system | Truncal ataxia (lack of voluntary coordination of skel. m.); Nystagmus (uncontrolled eye movements; Nausea |
| The neostriatum is composed of __________ | Caudate nucleus and putamen (which are major afferent receiving areas of the basal ganglia) |
| In general, the deep (central) nuclei of the cerebellum receive excitatory stimulation from __________ and inhibitory stimulation from __________ | afferents out of cerebellum; purkinje cells |
| Which thalamic nucleus receives afferents from vestibular nuclei in the pathway for conscious awareness of head position and head movement | Ventral Posteromedial Nucleus of the Thalamus |
| In the basic auditory pathway, the medial geniculate receives information from the __________ and projects to __________ | Inferior Colliculus; areas 41 & 42 |
| Weakness of the tongue on the L & Decreased discriminating touch in the R arm result in an occlusion of the __________ artery | L Posterior Inferior Cerebellar |
| The lamellae of photoreceptor cells contain | Rhodopsin |
| Which visual areas are represented in the posterior portion of the LEFT area 17 | RIGHT Macula lutea |
| Ganglion cell axons terminate on __________ in the pathway to Edinger Westphal | Superior Colliculi |
| Ganglion cell axons terminate on __________ in the pathway to preganglionic sympathetic nerve cell bodies | Hypothalamus |
| Ganglion cell axons terminate on __________ in the pathway to area 17 | Lateral geniculate |
| A person who is blind on the right-half of both eyes will have a visual pathway interruption where | LEFT Optic tract |
| If a light is shined into the left eye of the person with this lesion, how do the left and right pupils respond | Both left and right pupils will respond normally |
| A person with a pituitary tumor will have what visual deficit and where is the lesion | Blind in peripheral half of both eyes; optic chiasm |
| Ganglion cells of the retina terminate on the __________ to affect circadian rhythms | Hypothalamus |
| Give two reasons why the fovea centralis is the area of highest visual acuity | Only cones with no vessels, no convergence (light travels straight to it) |
| A lesion of the LEFT temporal loop fibers will result in blindness where | RIGHT, upper quadrant of both eyes |
| A lesion of the RIGHT parietal lobe will result in blindness where | LEFT, lower quadrant of both eyes |
| A lesion of the temporal loop fibers or the parietal love is likely due to a lesion of the __________ artery | middle cerebral |
| Stimulation of area 7 on one side will cause the eyes to move to the __________ | same side (i.e. stimulate 7 on left and eyes move left) |
| Stimulation of area 8 on one side will cause the eyes to move to the __________ | opposite side (i.e. stimulate 8 on left and eyes move right) |
| Which reticular nuclei are required for conjugate eye movements | Vestibular (via MLF) |
| Choreiform movements/nystagmus suggest a lesion located in the __________ | Medial Longitudinal Fasciculus |
| Fibers of the lateral lemniscus terminate on the __________ | Inferior Colliculus |
| Receptive aphasia is caused by a lesion likely located in the ________ | Parietal lobe, area 22 specifically/wernicke's area |
| Break | |
| What motor condition is described as: involuntary movements of the tongue and face induced by antipsychotic drugs | Tardive dyskinesia (involuntary movements of face and jaw) |
| What motor condition is described as: Hyperkinetic autosomal dominant genetic disease characterized by widespread destruction of the basal nuclei and cerebrum | Huntington's chorea (disease) |
| What motor condition is described as: Due to pathology of substantia nigra | Parkinson's disease |
| What motor condition is described as: May be caused by chronic alcoholism | Anterior lobe syndrome |
| What motor condition is described as: Results from attack by antibodies formed against the agent causing rheumatic fever | Sydenham's chorea (disease) |
| What motor condition is described as: Signs and symptoms include truncal ataxia, nystagmus, and dizziness | Flocculonodular lobe syndrome |
| Inability to smile on RIGHT side accompanied by an inability to close the eyes tightly; where is the lesion and where is decrease pain | RIGHT peripheral facial nervel, decreased pain over RIGHT CHEEK |
| With a lesion of a peripheral nerve, what other deficits may be present | Decreased salivation & Decreased taste sensation |
| Inability to smile on RIGHT side, but able to close eyes normally; where is the lesion and what general sensory deficits would be expected | LEFT Lateral Cerebral Cortex; decreased pain over right cheek |
Created by:
Quickdraw03
Popular Science sets