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Fiser Absite > 41 - Neurosurgery > Flashcards

41 - Neurosurgery Flashcards

1
Q

Comes together to form basilar artery

A

Vertebral arteries

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2
Q

Vertebral arteries branches into 2 _

A

Posterior cerebral arteries

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3
Q

Connect middle cerebral arteries to posterior cerebral arteries

A

Posterior communicating arteries

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4
Q

Branches off middle cerebral arteries

A

Anterior cerebral arteries

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5
Q

Anterior cerebral arteries connected via

A

anterior communicating artery

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6
Q

No axonal injury (temporary loss of function)

A

Neuropraxia

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7
Q

Disruption of axon with preservation of axon sheath

A

Axonotmesis

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8
Q

Disruption of axon AND myelin sheath

A

Neurotmesis

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9
Q

bare sections of nerve, allows salutatory conduction

A

Nodes of ranvier

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10
Q

ADH release controlled by _ nucleus of the hypothalamus

A

Supraoptic nucleus

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11
Q

SDH are caued by injury to _

A

Bridging veins

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12
Q

Epidural hematoma cause by injury to _

A

Middle meningeal artery

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13
Q

Cresent shape on CT scan

A

SDH

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14
Q

Convex/Lens shape on CT

A

EDH

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15
Q

Lobe often affected with intracerebral hematomas

A

Temporal lobe

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16
Q

Cushing triad

A

HTN
Bradycardia
Decreased resp rate

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17
Q

Most sensitive test for SCI

A

MRI

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18
Q

3 signs of spinal shock

A

HoTN
Normo/Bradycardia
Warm extremities (vasodilation)

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19
Q

Bilateral areflexia, flaccidity, parasthesias

A

Complete cord transection

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20
Q

Bilateral loss of motor, pain and temperature below level of lesion; preservation of position/vibratory sensation and light touch

A

Anterior cord syndrome

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21
Q

Loss of ipsilateral motor and contralateral pain/teperature below level of lesion

A

Brown-sequard syndrome (Hemisection)

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22
Q

Bilateral loss of pain, motor, and temperature sensation in upper extremities (lower spared)

A

Central cord syndrome

23
Q

Pain and weakness in lower extremities 2/2 lumbar nerve compression

A

Cauda (equina

24
Q

Tract that carries pain and temperature sensory fibers

A

Spinothalamic (dorsal)

25
Q

Tracts (2) that carries motor neurons

A

Corticospinal and rubrospinal

26
Q

Afferent nerve root, sensory fibers

A

Dorsal nerve roots

27
Q

Efferent nerve root, motor fibers

A

Ventral nerve roots

28
Q

Most common PRIMARY brain tumor

A

Gliomas

29
Q

Most common subtype of glioma; fatal

A

Glioma multiforme

30
Q

1 metastasis to brain

A

Lung Ca

31
Q

Most common brain tumor in children

A

Medulloblastoma

32
Q

Most common metastatic brain tumor children

A

neuroblastoma

33
Q

Acoutstic neuroma arises from _ cranial nerve at cerebellopontnie angle

A

8th

34
Q

1 spinal tumor

A

Neurofibroma

35
Q

_ spinal tumors are most likely benign

A

Intradural

36
Q

_ spinal tumors are most likely malignant

A

Extradural

37
Q

Brain bleeding type seen in premature infants

A

Intraventricular hemorrhage

38
Q

Herniation of spinal cord and nerve roots through defect in vertebra

A

Myelomeningocele

39
Q

Speech comprehension, temporal lobe

A

Wernicke’s

40
Q

Speed motor, posterior part of anterior lobe

A

Broca’s

41
Q

Acts as brain macrophages

A

Microglial cells

42
Q

Cranial nerve function/muscle of smell

A

1 - olfactory

43
Q

Cranial nerve function/muscle of sight

A

2 - optic

44
Q

Cranial nerve function/muscle of motor to eye

A

3 - oculomotor

45
Q

Cranial nerve function/muscle of sensory to face; muscle of mastication

A

5 - trigeminal

46
Q

Cranial nerve function/muscle of superior oblique of eye

A

4 - trochlear

47
Q

Cranial nerve function/muscle of lateral rectus to eye

A

6 - abducens

48
Q

Cranial nerve function/muscle of taste ant 2/3 of tongue; motor to face

A

7 - facial

49
Q

Cranial nerve function/muscle of hearing

A

8 - vestibulochochlear

50
Q

Cranial nerve function/muscle of taste to posterior 1/3 tongue; swallowing

A

9 - glossopharyngeal

51
Q

Cranial nerve function/muscle of many functions

A

10 - vagus

52
Q

Cranial nerve function/muscle of trapezius, SCM

A

11 - spinal accessory

53
Q

Cranial nerve function/muscle of tongue

A

12 - hypoglossal

Fiser Absite (14 decks)

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