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43 Cards in this Set
- Front
- Back
Newborn bacterial meningitis
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Group B strep
E. coli |
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Older infants and children bacterial meningitis
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Haemophilus influenzae
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Young adult bacterial meningitis
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neisseria meningitidis (vaccine available)
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older adults bacterial meningitis
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S. pneumoniae
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meningitis is inflammation of?
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pia-arachnoid of brain, spinal cord or both
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anterior spinal arter supplies...?
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2/3 anterior spinal cord
and in the medulla supplies the pyramid, medial lemniscus and CN XII root fibers |
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Third nerve palsy results from?
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PCA aneurysm (second most common in circle of Willis)
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Artery that supplies Broca's and Wernicke's areas
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middle cerebral
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failure of the anterior neuropore to close results in?
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anencephaly
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remnants of rathke's pouch can give rise to a congenital cystic tumor known as?
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craniopharyngioma
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most common cause of mental retardation
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fetal alcohol syndrome
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cerebellomedullary malformation in which the caudal vermis, cerebellar tonsils and medulla herniate through the foramen magnum
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arnold chiari syndrome
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hydrocephalus resulting from failure of the foramina of luschka and magendie to open
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dandy walker syndrome
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What drug inhibits azonal transport?
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colchicine
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What is the mechanism of colchicine and what does it affect?
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depolymerizes microtubules
inhibits axonal transport |
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Fast anterograde axonal transport is mediated by?
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kinesin
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Fast retrograde transport is mediated by
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neurotubules and dynein (this is how rabies, etc move up nerves)
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negri bodies are pathognomonic of?
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rabies
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hirano bodies are?
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intraneural eosinophilic rod like inclusions found in hippocampus of Alzheimer's disease
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Spinal accessory nucleus levels
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C1-C6
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Parasympathetic nucleus
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S2-S4
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ankle jerk reflex
(achilles reflex) |
S1 or S2
gastrocnemius |
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knee jerk
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L2/L4
quadriceps |
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biceps
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C5/6
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triceps
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C7/8
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dorsal column - medial lemniscus mediate?
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tactile discrimination, vibration sensation, form recognition, conscious proprioception
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Dorsal column-medial lemniscus
above sensory decussation ________ loss in the spinal cord there is ______ loss |
above contralateral
spinal cord ipsilateral |
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function of lateral spinothalamic tract
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pain and temperature
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transection of the lateral spinothalamic tract
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contralateral loss of pain and temperature below lesion
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function of lateral corticospinal tract
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mediates voluntary skilled motor activity primarily upper limbs
not myelinated until end of second year Babinski's sign |
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interuption of the hypothalamospinal tract at any level results in?
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ipsilateral Horner's syndrome
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LMN signs
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flaccid paralysis, areflexia, atrophy, fasciculations, fibrillations
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UMN signs
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spastic paresis with pyramidal signs
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ALS would give?
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UMN and LMN signs with NO sensory loss
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Romberg sign
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dorsal column ataxia seen in tabes dorsalis (neurosyphilis)
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opthalmic branch of trigeminal nerve exits through and provides what type of information
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superior orbital fissure
GSA |
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maxillary branch of trigeminal nerve exits through _______ and provides what type of information?
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foramen rotundum
GSA |
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mandibular branch of trigeminal nerve exits through ________ and provides what type of information
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foramen ovale
GSA and SVE (motor to muscles of mastication, mylohyoid, anterior belly of digrastric, tensores tympani and veli palatini) |
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The only location where an artery travels through a venous space
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cavernous sinus
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cavernous sinus syndrome can be caused by pituitary adenomas which results in opthalmoplegia. What is this?
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compression of oculomotor nerve (CNIII), trochlear (CN IV), abducens (CN VI), opthalmic (V1), maxillary (V2)
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caloric nystagmus directions for cold and warm water
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cold water - opposite
warrm water - same "COWS" |
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denervation of the levator palpebrae muscles resluts in?
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ptosis
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denervation of the extraocular muscles (innervated by CNIII)?
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eye looks down and out
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