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HS Exam 3 > Meninges, Calvaria, Scalp > Flashcards

Meninges, Calvaria, Scalp Flashcards

1
Q

CN 7 exit

A

stylomastoid foramen

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2
Q

CN 1 exit

A

cribriform plate of ethmoid bone

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3
Q

rhinorrhea

A

CSF leaking out of nose

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4
Q

8 bones of neurocranium

A 
frontal
parietal (2)
temporal (2)
occipital
sphenoid
ethmoid
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5
Q

14 bones of the viscerocranium

A 
lacrimal (2)
nasal (s)
maxilla (2)
zygomatic (2)
palatine (2)
inferior nasal conchae (2)
mandible
vomer
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6
Q

holes in the sphenoid bone

A 
optical canal
pterygoid canal
superior orbital fissure
foramen rotundum
forament ovale
foramen spinosum
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7
Q

where is the sella turica

A

center of sphenoid bone

turkish saddle for ridding the butterfly

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8
Q

parts of the sella turica

A

tuberculum- bump behind the optic chaiasm
hypoglossal fossa- indent where the pituitary sits
dorsum sallae- back of the saddle
clinoid proceses- bed posts surrounding the sella turica

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9
Q

sphenoid bone

A

butterfly in middle

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10
Q

sella turica

A

turkish saddle, area in center of sphenoid

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11
Q

tuberculum

A

bump behind optic chasm

part of the sella turica

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12
Q

hypoglossal fossa

A

where pituitary sits

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13
Q

dorsum sallae

A

back of the sella turica

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14
Q

clinoid processes

A

little things sticking off around the sella turica

bedposts

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15
Q

layers of the scalp

A 
skin
connective tissue
aponeurosis
loose connective tissue
pericranium
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16
Q

periorbital ecchymosis

A

bruising around eyes from laceration to the loose connective tissue layer of the scalp

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17
Q

leptomeninges

A

pia and arachnoid mater

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18
Q

where is the dural venous sinus

A

between the endosteal and menial layers of the dura mater

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19
Q

which cranial dura layer is continuous with the spinal dura layer

A

mengial layer- continuous at the foramen magnum

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20
Q

why doesn’t epidural anesthetic not enter brain

A

epidural space is not continuous with the brain

the endosteal and the mengial layer of the cranial dura are fused under the skull

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21
Q

cisterns of subarachnoid space

A

cerebellomedullary

lumbar

22
Q

location of cerebellomedullary cistern

A

between the posterioinferior cerebellum and posterior medulla

23
Q

location of lumbar cistern

A

L2-S2 where the dural sac ends

24
Q

structures formed by the dura mater layers

A

septa

dorsal venous sinuses

25
Q

4 major septa

A

cerebral falx
cerebellar tentorium
cerebelli falx
diaphragma sellae

26
Q

location of cerebral falx

A

between the 2 cerebral hemispheres

27
Q

location of cerebellar tentorium

A

separates cerebellum and occipital lobe

clinoid processes of sphenoid to internal surface of occipital and parietal bones

28
Q

tentorial incisure

A

hole in the cerebellar tantorium that the midbrain goes through

29
Q

space filling lesion common location in adults

A

supratentorial compartment

30
Q

uncal herniation

A

protrusion of the uncut (medial temporal lobe) through the tectorial notch (incisure)

31
Q

space filling lesion common location in children

A

infratentorial compartment

32
Q

falx cerebelli location

A

between cerebellar hemispheres, attached to tantrum cerebelli

33
Q

diaphragma sellae location

A

covers the hypophyseal fossa of the sella turica, over the pituitary

34
Q

what penetrates the diaphragm sellae

A

infundibulum of pituitary

35
Q

location of trabeculae

A

subarachnoid space

36
Q

bregma point

A

intersection of coronal and sagittal sutures

37
Q

lamda point

A

intersection of sagittal and lambed sutures

38
Q

parietal emissary foramen

A

holes next to the sagittal suture

39
Q

pterion

A

intersection of frontal, parietal, sphenoid, and temporal bones

40
Q

metopic suture

A

frontal suture that has not yet fused in infants

41
Q

features of interior of calvaria

A

sagittal groove
granular pits
grooves for middle mengial arteries

42
Q

layers of calvaria bone

A

outer table- compact bone
diploe- spongy bone
inner table- compact bone

43
Q

emissary veins

A

veins that pass through all 3 calvaria layers and connect the dural sinuses to the cranial veins

44
Q

diploic veins

A

veins in calvaria that drain into the scalp veins or dural sinuses

45
Q

arachnoid granules

A

drain CSF back into venous ssystem

46
Q

draining veins (9)

A 
superior sagittal sinus
inferior sagittal sinus
straight sinus
transverse sinus
sigmoid sinus
occipital sinus
cavernous sinus
superior petrosal sinus
inferior petrosal sinus
47
Q

innervation and blood supply of supratentorial compartment

A

innervation - trigeminal nerve

blood- middle menial artery

48
Q

innervation and blood supply of infratentorial compartment

A

innervation- C2-C3

blood- occipital artery, anterior/posterior mental branches of vertebral artery

49
Q

epidural hematoma

A

cresent shaped

rupture of middle menial artery

50
Q

subdural hematoma

A

follows ducal pattern

rupture of cerebral artery

HS Exam 3 (20 decks)

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