lecture 2- head osteology Flashcards

1
Q

left common carotid artery is a branch of the

A

arch of the aorta

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2
Q

opening on the base of the skull

A

foramen spinosum

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3
Q

arteries that arise from the maxillary artery

A

branches to the muscles of mastication, middle meningeal, inferior alveolar, sphenopalatine

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4
Q

arteries that branch of the external carotoid artery

A

facial, occipital, posterior auricular, superficial temporal

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5
Q

associated with the infra temporal fossa

A

pterygoid venous plexus, medial pterygoid muscle, maxillary artery, inferior alveolar nerve

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6
Q

vein that drains the scalp posterior to the auricle and superior to the mastoid process

A

superficial temporal

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7
Q

ligament that connects adjacent laminae is the

A

ligamenta flava

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8
Q

layer of the scalp containing the ramifying arteries, veins, and nerves is the

A

connective tissue layer

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9
Q

two parts of the cranium

A

neurocranium and viscerocranium

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10
Q

neurocranium

A

bony case of the brain, including cranial menages

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11
Q

singular bones in neurocranium

A

frontal, ethmoid, sphenoidal, ad occipital

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12
Q

paired bones in neurocranium

A

temporal and parietal

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13
Q

calvaria

A

dome-like roof of the neurocranium (skull cap)

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14
Q

cranial base

A

floor of the neurocranium

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15
Q

viscerocranium

A

anterior part of cranium

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16
Q

singular bones in viscerocranium

A

mandible, ethmoid , vomer

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17
Q

paired bones in viscerocranium

A

maxillae, inferior nasal conchae, zygomatic, palatine, nasal, and lacrimal

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18
Q

fontanel

A

unossified area in the infant cranium

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19
Q

suture

A

fibrous joint between cranial bones

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20
Q

air sinuses; pnematized bones

A

contains air spaces that increase with age

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21
Q

supraorbital foramen

A

located in supraorbital margin

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22
Q

glabella

A

smooth slightly depressed area between superciliary arches

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23
Q

zygomatic bones

A

form prominence of cheeks, lie inferolateral to orbits , rest on maxillae,

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24
Q

contributes to medial wall of the orbit

A

lacrimal bone, contains fossa for lacrimal sac

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25
Q

lamina papyracea

A

orbital plate of ethmoid bone, posterior to the lacrimal bone, contributes to medial wall

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26
Q

inferior orbital fissure

A

between maxilla, zygomatic and greater wing of the sphenoid

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27
Q

infraorbital groove

A

depression on the orbital surface of the maxilla

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28
Q

alveolar processes

A

tooth sockets (alveoli)

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29
Q

infraorbital foramen

A

inferior to each orbit, located on the maxillae

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30
Q

maxillary tuberosity

A

posterior on maxilla, behind last tooth. most prominent after growth of wisdom tooth

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31
Q

body

A

horizontal part of mandible

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32
Q

ramus

A

vertical part of mandible

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33
Q

angle

A

union of body and ramus

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34
Q

mental protuberance

A

forms prominence of chin

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35
Q

mental foramen

A

outside of the body on the mandible

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36
Q

coronoid process

A

anterior to condylar proces on mandible

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37
Q

mandibular notch

A

between coronoid and condylar processes

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38
Q

condylar process

A

inserts into mandibular fossa of the temporal bone to form the TMJ

39
Q

alveolar process

A

house the lower teeth

40
Q

interalveolar septa

A

bony partitions separating tooth sockets

41
Q

mental spine

A

site of attachment for muscles

42
Q

mandibular foramen

A

next to and guarded by the lingual

43
Q

lingula

A

spinous process protecting the mandibular foramen and the nerve

44
Q

zygomatic process

A

forms part of zygomatic arch, where the temporal bone meets zygomatic

45
Q

pterion

A

weak area of bone junctions

46
Q

temporal fossa

A

muscle filled space

47
Q

coronal suture

A

separates frontal and parietal bones

48
Q

sagittal suture

A

separates parietal bones

49
Q

lambdoid suture

A

separates parietal and temporal bones from occipital bone

50
Q

extends laterally from external occipital protuberance. marks the superior limit of neck posteriorly

A

superior nuchal line

51
Q

anterior to superior nuchal line and posterior to posterior rim of foramen magnum

A

inferior nuchal line

52
Q

transition point between brain and spinal cord

A

foramen magnum

53
Q

protuberances on each side of FM. articulates cranium with vertebral column

A

occipital condyles

54
Q

depression posterior (and lateral) to FM and containing the condylar canal

A

condylar fossa and the condylar canal is there as well

55
Q

anterior to the occipital canals

A

hypoglossal canal

56
Q

eminence on basilar part. attachment for pharyngeal wall

A

pharyngeal tubercle

57
Q

exist only in the diseased, dry cranium. between occipital, temporal and sphenoid bones

A

foramen lacerum

58
Q

stylomastoid foramen

A

in temporal bone, posterolateral to styloid process and anteromedially to mastoid process

59
Q

medial to the styloid process

A

carotid canal

60
Q

posterior to cartid canal

A

jugular foramen

61
Q

anterior to external acoustic meatus opening . accommodates mandibular condyles

A

mandibular fossa

62
Q

anterior to the external acoustic meatus opening

A

petrotympanic fissure

63
Q

front boundary of mandibular fossa

A

articular tubercle

64
Q

extend inferiorly from the junction of body and wings, medial to lateral pterygoid plate

A

medial pterygoid plate

65
Q

small hook shape coming off the medial pterygoid plate that serves as muscle attachment

A

pterygoid hamulus of sphenoid bone

66
Q

posterolateral to lateral pyerygoid plate. opens into the infra temporal fossa

A

foramen ovale

67
Q

posterior and slightly lateral to foramen oval

A

foramen spinosum

68
Q

posterior to foramen spinosum , it guards it

A

spine

69
Q

contributes to nasal septum, posterior to palatine bone

A

Vomer

70
Q

posterior to the opening of nasal cavity

A

choanae

71
Q

anterior to vomer and posterior to maxilla

A

palatine vomer

72
Q

posterolateral to palatine bone

A

greater palatine foramen

73
Q

posterior to greater palatine foramen

A

lesser palatine foramina

74
Q

posterior to incisive teeth

A

incisive fossa

75
Q

median bony extension in frontal bone

A

frontal crest

76
Q

at the base of the frontal crest

A

foramen cecum

77
Q

thick, median ridge posterior to foramen cecum

A

crista galli

78
Q

sieve like structure on each side of crista galli

A

cribriform plate

79
Q

guards hypophyseal fossa anteriorly

A

anterior clinoid process

80
Q

elevation of bone, forming anterior boundary of hypophyseal fossa

A

tuberculum sellae

81
Q

median depression b/w the tuberculum and dorsum sellae

A

hypophyseal fossa

82
Q

houses the pituitary gland

A

hypphyseal fossa

83
Q

elevation of bone, forming posterior boundary of hypophyseal fossa, and ends laterally in the posterior clinoid processes

A

dorsum sellae

84
Q

guards hypophysial fossa posteriorly

A

posterior clinoid process

85
Q

between the greater and lesser wings of sphenoid and goes into the orbit

A

superior orbital fissure

86
Q

posterior to medial end of superior orbital fissure

A

foramen rotundum

87
Q

characteristics of a developing cranium

A

unerupted teeth, small face area compared to cranial cavity (1/8 the size of cranial portion; 1/3 in adults) ; no rams of mandible at birth ;

88
Q

in a developing cranium processes that are underdeveloped

A

mastoid and styloid

89
Q

soft spots syn.

A

fontanels or soft spots

90
Q

in a developing cranium between frontal and parietal bones

A

anterior fontanel

91
Q

in a developing cranium between parietal and occipital bones

A

posteior fontanel

92
Q

in a a developing cranium where temporal parietal and occipital bones converge

A

mastoid fontanel

93
Q

in a developing cranium where sphenoid, frontal, parietal and temporal bones converge = pterion in adults. one of the last areas of the skull to develop

A

sphenoid fontanel