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Anatomy > skull > Flashcards

skull Flashcards

1
Q

where are the superior and inferior fissures

A

sphenoid bone

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2
Q

what passes through the foramen ovale

A

mandibular nerve, accessory meningeal artery, lesser petrosal nerve

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3
Q

what passes through the foramen spinosum

A

middle menigeal artery and vein, menigeal branch of mandibular nerve

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4
Q

what passes through foramen cecum

A

the emissary vein from the nose to the superior sagittal sinus.

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5
Q

what passes through the optic canal

A

optic nerve (CII), ophthalmic artery

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6
Q

what passes through the superior orbital fissure

A

oculomotor nerve (CN III), trochlear nerve (CN IV), and abducens nerve (CN VI)

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7
Q

what passes through the inferior orbital fissure

A

Infraorbital nerve, artery and vein. Inferior ophthalmic vein. Zygomatic nerve

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8
Q

what is a emissary vein

A

The emissary veins connect the extracranial venous system with the intracranial venous sinuses.

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9
Q

where is the incisive foramen

A

midline of the hard palate

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10
Q

where is the cribiform plate and crista galli

A

ethmoid bone

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11
Q

what passes through cribiform plate

A

olfactory nerves

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12
Q

what is the pterygoid process

A

downward part behind maxilla - includes lateral and medial pterygoid plates

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13
Q

where is foramen cecum

A

ethmoid bone

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14
Q

which bone is hypoglossal canal in

A

occipital

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15
Q

What nerve goes through hypoglossal canal

A

hypoglossal nerve (CXII)

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16
Q

What goes through the foramen magnum

A

medulla oblongata, meninges, vertebral arteries, spinal roots for accessory nerves

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17
Q

what muscle is attached to mastoid process

A

sternocleidomastoid

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18
Q

what bone is the mastoid process in

A

temporal bone

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19
Q

where is the internal auditory meatus

A

temporal bone ( above jugular foramen

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20
Q

what goes through the internal auditory meatus

A

vestibulocochler nerve and facial nerves

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21
Q

Function of occipital condyles

A

articulate with the atlas vertebra to form the atlanta-occipital joints

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22
Q

what is attached to the styloid process

A

stylohyoid and styloglossus muscles

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23
Q

where is the styloid process

A

temporal bone

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24
Q

what is the functions of the hypoglossal nerve

A

Draws hyoid bone up and forward
Movement of tongue
Depresses mandible

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25
Q

what goes through the condylar canal

A

emissary vein

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26
Q

what goes through the mastoid foramen

A

emissary vein and the posterior meningeal artery

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27
Q

where is the condylar canal

A

occipital bone

28
Q

what goes through the stylomastoid foramen

A

facial nerve

29
Q

where is the carotid canal

A

temporal bone

30
Q

where is the foramen spinosum

A

sphenoid bone

31
Q

what passes through the carotid canal

A

internal carotid artery

32
Q

where is the jugular foramen

A

temporal bone

33
Q

what passes through the jugular foramen

A

vagus nerve (X), Accessory nerve (XI), glossopharyneal nerve (IX), sigmoid sinus

34
Q

what goes through the foramen lacerum

A

the greater petrosal nerve, the deep petrosal nerve

35
Q

function of Petrotympanic fissure

A

communications of cranial nerves VII and IX to the infratemporal fossa.

36
Q

where is optic canal

A

sphenoid bone

37
Q

function of incisive foramen

A

carries the sphenopalatine artery and the nasopalatine nerve from the nasal cavity through the bony palate via the incisive canal

38
Q

what is in temporal fossa

A

large temporalis muscle

39
Q

what passes through the foramen rotundum

A

maxillary nerve

40
Q

what is in infratemporal fossa

A

pterygoid muscles and coronoid process

41
Q

where is the foramen rotundum

A

sphenoid bone

42
Q

where is the foramen ovale

A

sphenoid bone

43
Q

what passes through the mandibular foramen

A

The inferior alveolar artery

44
Q

what passes through the mental foramen

A

the mental nerve, artery and vein

45
Q

what bones make up the calvaria

A

frontal, parietal and occipital

46
Q

when does Lambdoid sucture fuse

A

60 yrs old

47
Q

what suture is between occipital and parietal bone

A

lambdoid

48
Q

the coronal suture splits what bones

A

frontal and parietal

49
Q

where is sagittal suture

A

middle of parietal

50
Q

what suture splits temporal and parietal bone

A

squamous

51
Q

name four fontanelles and when they close

A

Anterior fontanelle; closes 8-15 months
Posterior fontanelle: closes 3-4 months
Mastoid fontaneel: closes about 1 year
Sphenoid fontanelle: closes 3 months

52
Q

what is a linear fracture

A

break that does not move bone - good recovery

53
Q

what is a basiliar fracture

A

break in back of skull - most serious

54
Q

what is a depressed fracture

A

part of skull sunken in - needs surgical intervention

55
Q

what is a Diastatic fracture

A

a split in suture lines

56
Q

what passes through the foramen rotundum

A

Maxillary division of the trigeminal nerve (CN V2)

57
Q

what bone is the clivus in

A

sphenoid bone

58
Q

The pterygoid process of what bone forms the posterior wall of the pterygopalatine fossa

A

sphenoid bone

59
Q

how many unpaired bones are in the cranium

A

4 - occipital, frontal, ethmoid and sphenoid bones.

60
Q

how many unpaired bones are in the face

A

2

61
Q

what are the two unpaired facial bones

A

vomer and mandible

62
Q

how many nerves go through the internal acoustic meatus

A

2

63
Q

The supraorbital foramen of the skull provides an exit from the orbit for what

A

continuation of the ophthalmic nerves fibres

64
Q

what opening does a branch of the maxillary artery go through to reach inside the nasopharynx

A

sphenopalatine foramen

65
Q

what veins form a plexus in the spongy bone of the skull

A

diplioc veins

Anatomy (16 decks)

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