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Anatomy > Exam 4 > Flashcards

Exam 4 Flashcards

1
Q

where does the pituitary sit

A

sella turcica of sphenoid bone

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2
Q

positioning of pituitary gland

A

behind bridge of nose
below hypothalamus and optic chiasm
between carotid arteries

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3
Q

epidural hematomas involve what type of blood?

A

arterial

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4
Q

what type of injury commonly proceeds epidural hematomas?

A

skull fx

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5
Q

shape of epidural hematoma on CT

A

lens shaped

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6
Q

subdural hematomas involve what type of blood?

A

venous

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7
Q

what 2 layers are subdural hematomas between?

A

dura and arachnoid mater

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8
Q

what type of injuries commonly proceed subdural hematomas?

A

fall or blow to the head–> tears bridging veins

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9
Q

shape of subdural hematoma on CT

A

crescent shape

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10
Q

what type of hematoma CAN cross sutures?

A

subdural

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11
Q

epidural hematomas are referred to as ______ since they do not cross sutures

A

lentiform

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12
Q

this drains blood from the brain and face and drains into the pterygoid plexus

A

cavernous sinus

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13
Q

what is the MC orbital fx?

A

blow out fx- specifically floor fx

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14
Q

list 3 major arteries to the thyroid

A

superior thyroid artery
inferior thyroid artery
thyroid IMA

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15
Q

the superior thyroid artery is a branch of what major vessel?

A

external carotid

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16
Q

the inferior thyroid artery is a branch of what major vessel?

A

thyrocervical trunk

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17
Q

the thyroid ima artery is a branch of what vessel?

A

subclavian artery

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18
Q

why is there such extensive anastomoses in the thyroid?

A

ensures collateral flow between subclavian and external carotids

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19
Q

this dural infolding separates the L and R hemispheres of the cerebrum

A

cerebral falx

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20
Q

what 2 sinuses does the cerebral falx form?

A

superior and inferior sagittal sinuses

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21
Q

this dural infolding separates the occipital lobes from the cerebellum

A

cerebral tentorium

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22
Q

where is the retropharyngeal space located between?

A

behind pharynx and esophagus
in front of prevertebral muscles

23
Q

infection of retropharyngeal space typically won’t spread if it’s located where?

A

between investing layer and muscular part of pretracheal fascia

24
Q

infection of the retropharyngeal space will spread to the thorax if located here

A

between investing fascia and visceral fascia of pretracheal fascia

25
Q

retropharyngeal abscess here will lead to a bulge posterior to SCM and may lead to pneumomediastinum

A

posterior to prevertebral layer of deep fascia

26
Q

what 4 vessels form kiesselbach plexus?

A

ethmoid artery
sphenopalatine artery
greater palatine artery
superior labial artery

27
Q

where does the olfactory nerve exit?

A

cribriform plate

28
Q

where does the optic nerve exit?

A

optic canal

29
Q

where does the oculomotor nerve exit?

A

superior orbital fissure

30
Q

where does the trochlear nerve exit?

A

superior orbital fissure

31
Q

where does the trigeminal nerve exit?

A

superior orbital fissure
foramen rotundum
foramen ovale

32
Q

where does the abducens nerve exit?

A

superior orbital fissure

33
Q

where does the facial nerve exit?

A

internal acoustic meatus

34
Q

where does the vestibulocochlear nerve exit?

A

internal acoustic meatus

35
Q

where does the glossopharyngeal nerve exit?

A

jugular foramen

36
Q

where does the vagus nerve exit?

A

jugular foramen

37
Q

where does the accessory nerve exit?

A

jugular foramen

38
Q

where does the hypoglossal nerve exit?

A

hypoglossal canal

39
Q

smell

A

CN1

40
Q

sight

A

CN2

41
Q

EOM
opens eye
pupillary constriction and accommodation

A

CN3

42
Q

superior oblique–> eye down and in

A

CN4

43
Q

mastication
opens mouth

A

CN5

44
Q

lateral eye movement via lateral rectus

A

CN6

45
Q

tear and saliva excretion
taste

A

CN7

46
Q

hearing and balance

A

CN8

47
Q

taste

A

CN9

48
Q

swallowing
chemo and baroreceptors

A

CN10

49
Q

shrugs shoulders via SCM and trapezius

A

CN11

50
Q

tongue movement via intrinsic and extrinsic tongue muscles

A

CN12

51
Q

what nerve innervates anterior 2/3 of tongue and stapedius of external ear

A

CN7

52
Q

what nerve innervates the posterior 1/3 of the tongue?

A

glossopharyngeal

53
Q

what nerve innervates the soft palate?

A

CN10

54
Q

which nerve innervates the eustachian tube, carotid body and sylopharyngeus?

A

CN9

Anatomy (8 decks)

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