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Tri 1 - DAA > Exam 1 Osteology - Skull > Flashcards

Exam 1 Osteology - Skull Flashcards

1
Q

How many bones in the skull?

A

22 total
8 cranial
14 facial

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2
Q

other names for cranial bones

A

neurocranium, cranium, brain case

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3
Q

calvaria

A

skull cap

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4
Q

facial bones

A

viscerocranium; not in contact with the brain, all are paired except vomer and mandible

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5
Q

neurocranium

A 
frontal
parietal
occipital
temporal
sphenoid
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6
Q

viscerocranium

A 
nasal
palatine
lacrimal
zygomatic
maxilla
inferior nasal conchae
vomer
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7
Q

fontanelles

A

frontal
occipital
sphenoidal
mastoid

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8
Q

frontal fontanelle

A

anterior, closes by 18-24m, becomes bregma

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9
Q

occipital fontanelle

A

posterior, closes by 2m, becomes lambda

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10
Q

sphenoidal fontanelle

A

anterolateral, closes by 3m, becomes pterion

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11
Q

mastoid fontanelle

A

posterolateral, closes by 1y, becomes asterion

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12
Q

sagittal suture

A

between 2 parietal bones; perpendicular to frontal and occipital bones

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13
Q

coronal suture

A

between frontal and parietal bones

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14
Q

metopic suture

A

between 2 frontal bones, closes around 6-8y

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15
Q

lambdoidal suture

A

between parietal and occipital bones

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16
Q

squamous suture

A

between parietal and temporal bones

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17
Q

frontal bone parts

A 
frontal squama
supraorbital arch
supraorbital foramen
supracilliary ridge
glabella
bregma
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18
Q

supraorbital foramen

A

CN V1

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19
Q

glabella

A

means smooth, hairless

aka mesophryon, antinion, intercilium

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20
Q

parietal bone parts

A 
parietal foramina (emissary vein)
temporal lines (temporal m.)
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21
Q

temporal bone parts

A

squamous portion
tympanic portion
mastoid portion
petrous portion

22
Q

squamous portion of the temporal bone

A

zygomatic process
mandibular fossa
groove for posterior deep temporal a.

23
Q

tympanic portion of the temporal bone

A

external acoustic meatus

styloid process

24
Q

mastoid portion of the temporal bone

A

mastoid process
mastoid foramen
stylomastoid foramen
mastoid sinus

25
Q

petrous portion of the temporal bone

A

groove for sigmoid sinus
carotid canal
internal acoustic meatus
jugular foramen

26
Q

jugular foramen

A

located between the occipital and temporal bones

27
Q

occipital bone parts

A 
foramen magnum
occipital condyles
hypoglossal canal
external occipital protuberance
nuchal lines
clivus
groove for transverse sinus
28
Q

inion

A

greek for back of head/neck; most prominent projecting point of occipital bone

29
Q

sphenoid bone parts

A 
body
greater and lesser wing
anterior/posterior clinoid process
foramen lacerum, rotundum, ovale, spinosum
sella turcica
jugum
chiasmatic groove
pterygoid plates
30
Q

sella turcica

A 
"Turkish saddle", houses hypophysis (pituitary)
tuberculum sellae
hypophyseal fossa
dorsum sellae
posterior clinoid process
31
Q

ethmoid bone

A

crista galli (attaches to dura mater)
perpendicular plate
superior/middle nasal concha

32
Q

maxilla parts

A

frontal process
zygomatic process
alveolar process
infraorbital foramen

33
Q

zygomatic parts

A

zygomaticofacial foramen

temporal process

34
Q

mandible parts

A 
mental protuberance
mental tubercle
mental forman
body
angle
ramus
coronoid process
lingual
mandibular foramen
condylar process
mandibular notch
35
Q

symphysis menti

A

fuses 1-2y

36
Q

hyoid bone

A

greater/lesser horn

body

37
Q

Which bones form the orbit?

A 
frontal
ethmoid
sphenoid
maxillary
lacrimal
zygomatic
palatine
38
Q

auditory ossicles

A

malleus
incus
stapes

39
Q

frontal bone development

A

intramembranous ossification

40
Q

parietal bone development

A

intramembranous ossification

41
Q

occipital bone development

A

both intramembranous and endochondral ossification

42
Q

temporal bone development

A

both intramembranous and endochondral ossification

43
Q

sphenoid bone development

A

endochondral ossification

44
Q

ethmoid bone development

A

endochondral ossification

45
Q

maxilla bone development

A

intramembranous ossification

46
Q

nasal bone development

A

intramembranous ossification

47
Q

zygomatic bone development

A

intramembranous ossification

48
Q

lacrimal bone development

A

intramembranous ossification

49
Q

vomer bone development

A

intramembranous ossification

50
Q

palatine bone development

A

intramembranous ossification

51
Q

hyoid bone development

A

endochondral ossification

52
Q

mandible bone development

A

both intramembranous and endochondral ossification

Tri 1 - DAA (8 decks)

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