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Flashcards in Neurology Deck (13):
1

Cavernous sinus syndrome presentation

variable ophthalmoplegia + decreased corneal sensation + horner syndrome + decreased maxillary sensation + papilledema + retinal hemorrhages + cranial nerve palsies + fever + unilateral headache + exopthalmos

2

Nerve most susceptible to injury in cavernous sinus syndrome

CN VI

3

medial medullary syndrome presentation

contralateral hemiparesis (upper and lower limbs) + decreased contralateral proprioception + ispilateral hypoglossal dysfunction (tongue deviates toward the side of the lesion).

4

medial medullary syndrome etiology

infarct of paramedian branches of ASA and verebral arteries.

5

Differentiating AICA from PICA stroke

FA 464. Facial droop means AICA's pooped.

6

pseudocholinesterase deficiency

Makes people sensitive to certain anesthetic drugs, including muscle relaxants succinylcholine and mivacurium and other ester anesthetics.
Presentation = paralysis of respiratory muscles.

7

ryanodien receptors

receptors on the sarcoplasmic reticulum that are coupled to dihydropyridine receptors and cause Ca2+ release from the sarcoplasmic reticulum.

8

sarcoplasmic reticulum

smooth ER in muscle cells that contains calcium ions.

9

Neuromyelitis optica
1) presentation
2) etiology

1) simultaneous inflammation and demyelination of optic nerve and spinal cord.
2) Autoimmune: antibodies to astrocytes of optic nerves and spinal cord.

10

Anal wink

Reflexive contraction of the external anal sphincter upon stroking of the skin around the anus.

11

Absence of anal wink indicates...

damage to the spinal cord, either in afferent or efferent limb

12

anal wink afferent, efferent

sensory neuron, pudendal

13

Friedreich's ataxia pathophys

Degeneration of nervous tissue in the spinal cord leading to spinal nerves losing some of their **myelin sheath.