The skull Flashcards

(63 cards)

1
Q

Consists of 22 separate bones not including ossicles and extra sutral bones, 8 skull bones are paired and 6 are unpaired

A

Adult skull

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2
Q

Skull without mandible, fuses with sutral lines later in life

A

Cranium

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3
Q

Cranium without face

A

Calvaria

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4
Q

Calvaria without base

A

Calotte

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5
Q

Facial skeleton

A

Splanchocranium

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6
Q

Encompasses forehead and upper part of eye sockets

A

Frontal bone

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7
Q

Attachment point of the temporalis muscle in the frontal bone, stretches posteriorly

A

Temporal lines

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8
Q

Brow ridges in frontal bone

A

Superciliary arches

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9
Q

Sinus cavities in frontal bone, can be used to identify individuals. Middle inferior view

A

Frontal sinuses

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10
Q

Pair of bones (left and right) of your vault. Superior, frayed edges

A

Parietal bones

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11
Q

Accommodate the meningeal arteries of parietal bones. Inferior grooves

A

Meningeal grooves

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12
Q

Contains opening for ear canal, part of cheekbone, soft temples superior and anterior

A

Temporal bone

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13
Q

Thin, plate like projection of bone. Flat superior surface above zygomatic process in temporal bone

A

Squamous

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14
Q

External opening of ear canal in temporal bone

A

External auditory meatus

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15
Q

Thin projection of bone in temporal bone, forms posterior part of cheek bone

A

Zygomatic process

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16
Q

Thick projection of bone on antero-inferior surface of temporal bone. attaches to neck muscles, posterior to external auditory meatus

A

Mastoid process

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17
Q

Thin, pointed projection of temporal bone. Anchor point for the stylohyoid ligament. Inferior, posterior to external auditory meatus

A

Styloid process

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18
Q

Back of skull, massive hole at bottom

A

Occipital bone

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19
Q

Large hole in the occipital bone through which the brain stem passes

A

Foramen magnum

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20
Q

Large plate of bone in occipital bone that faces posteriorly, superior to foramen magnum

A

Squamous

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21
Q

Rugged surface on posterior surface of occipital bone

A

Nuchal crest

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22
Q

Oval surface on either side of foramen magnum, articulates with atlas. Occipital

A

Occipital condyle

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23
Q

Two, forms most of face and nasal aperture. Holds upper dentition

A

Maxillae

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24
Q

Two, left and right. Mouth and nasal cavity

A

Palatine bones

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25
Vertical bone that runs down the nasal aperture, thin and blade like
Vomer
26
Left and right in nasal opening
Inferior nasal conchae
27
Partially eye orbit, back of nasal aperture
Ethmoid bone
28
Tear duct bones, compose part of eye orbit
Lacrimal
29
Left and right, make up bridge of nose
Nasals
30
Left and right, part of cheekbone and eye orbit
Zygomatics
31
Looks like a butterfly/ink blob, sits at center of skull. Visible inferiorly and laterally, anterior to temporal bone
Sphenoid
32
Point of union between occipital and sphenoid bones, potential age indicator. Gap in youth and obliterated in adulthood
Spheno-occipital synchondrosis
33
Only bone of head that doesn’t fuse, articulates. Makes up the lower jaw
Mandible
34
Thick bony part of mandible that anchors teeth, inferior
Body/ramus
35
Openings on lateral body of mandible, blood vessels pass through here and cause us to get flushed
Mental foramen
36
Anterior region of mandible between incisors, point of union between the halves. Fuse later in life
Mandibular symphysis
37
Chin in mandible, we are the only species to have this
Mental eminence
38
Smooth point of articulation with temporal bone
Mandibular condyles
39
Study of dentition. Teeth are more resistant to physical and chemical alteration. Most represented part of the body in forensic and archaeological contexts. Yield info about age, sex, health, diet, origin and evolutionary relationships of individuals
Odontology
40
Teeth that erupt and are shed during childhood
Deciduous teeth
41
Secondary adult teeth
Primary
42
Flat blade like teeth, two on each side of each jaw
Incisors
43
Sharp teeth, one per each side of each jaw
Canines
44
Two sharp cusps, two per each side of each jaw
Premolars
45
Bigger, three per each side of each jaw
Molars
46
Upper and lower dentition divided into right and left halves (R and L). Letter for type of tooth (I, C, P, M). Number superscript from center if upper, subscript from center if bottom
Numbering teeth
47
Toward the midline of the dental arch, anterior portion of molars and premolars and medial surfaces of incisors and canines (incisors ___ to molars)
Mesial
48
Opposite of Mesial, toward the back of the mouth (molars ___ from incisors)
Distal
49
Surface of teeth that face the tongue
Lingual
50
Surface of teeth toward the lips, used with incisors and canines
Labial
51
Surface of teeth towards the cheeks, used with premolars and molars
Buccal
52
Surface of tooth in contact with another tooth in the same jaw
Interproximal
53
Surface of tooth you chew on, meets up with teeth of other jaw
Occlusal
54
Hard brittle outer surface of tooth, 97% mineralized once formed
Enamel
55
Part of tooth covered by enamel
Crown
56
Calcified connective tissue, the living core of the tooth that protects the pulp cavity
Dentine
57
Expanded part of pulp cavity that houses pulp
Pulp chamber
58
Soft tissue filled with nerves and blood
Pulp
59
Constricted part of tooth where crown meets root
Neck
60
Occlusal projection of the crown. Molars have five, premolars have two
Cusp
61
Cleft on the occlusal surface between cusps
Fissure
62
Narrow end of the pulp cavity at the root end of tooth
Root canal
63
End of tooth, incisors and canines have one, premolars can have two, molars more
Apex