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An1107- Mod 4 > skull 2 > Flashcards

skull 2 Flashcards

1
Q

when does the anterior, posterior, mastoid and mandible fuse by

A

ant-18m
post- end of 1st year
mastoid- 28 days
mandible- 2nd year

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2
Q

what is schapocephaly, oxycehaly and plagiocephaly

A

scha- premature closure of sagital (long)

Oxy- premature closure of coronal (tall)

Plag- premature closure of coronal or lamboid (flat)

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3
Q

how long does it take for the sutures to completely ossify on the interior and exterior

A

30-40 on internal

then another 10 on external

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4
Q

where are the jugular notch found

A

petronous part of the temporal bone

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5
Q

what travels thru the hypoglossal canals

A

CN 12 ( found on ocipital condyles)

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6
Q

What travels thru the cribriform plate

A

CN 1 (olfactory) -part of ethmoid bone

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7
Q

what travels thru the ant and post ethmoidal oppenings ( thru cribiform plate)

A

opthalmatic div of CN5

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8
Q

what can compresss the optic chasim and cause peripheral vision probs

A

pituitary gland

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9
Q

where is the supraorbital fissure located and what travels thru

A

bw greater and lesser wing

Cn3,4,5

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10
Q

what exits thru foramen rotundum

A

maxillary div of CN5

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11
Q

what exits thru foramen ovale

A

mandible div of CN5

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12
Q

what exits thru foramen spinosum

A

middle maningeal a and maningeal branch mandibular nerve

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13
Q

what exits thru internal auditory meatus

A

CN 7,8

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14
Q

what exits thru jugular foramen

A

CN 9,10,11

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15
Q

what are the 4 parts around the foramen magnum

A

basilar (toward front)
lateral
squamous

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16
Q

parts of the temporal bone

A

squamous
petronus
Typanic
Mastoid

17
Q

what are the 3 temporal bone contents

A

external ear- external auditory meatus, tympanic membrane

middle ear- pharangotympanic tube, ossicles, tympanic cavity

Inner ear- cochlea, semicircular cannals

18
Q

what are the 2 sensory ganglia in the inner ear

A

vestibular and cochlea ganglia (from vestibularchochlear n)

19
Q

roof, inf wall, med wall, lat wall and post wall of tympanic cavity

A 
Roof: Tegmental wall
Inferior wall: Tympanic plate
Lateral wall: tympanic membrane
Medial wall: Labyrinthine wall
5. Post. Wall (Mastoid process +Facial canal +CNVII
20
Q

what two branches does CN7 (facial) send in the tympanic cavity

A

stapedius m and tensor tympani m (both m are for dampaning purposes)

21
Q

what is mastoiditis

A

is an inflammation of mucosal lining of mastoid antrum & mastoid air cell system inside mastoid process as a result of an unresolved middle ear infection

22
Q

borders of supramental tri

A

Ant.-post. border of Ext. Ac. Meatus
Sup.- Supramastoid crest
Post. – line joining the two

23
Q

what attaches to styloid process (5)

A 
Stylohyoid lig: to apex
Stylomandibular lig
Stylohoid m
Styloglossus m
Stylopharyngeus m
24
Q

what runs through musculotubal cannal (3)

A

Tensor tympani m
Tympanic tube
Branches of pterygoid canal a (of maxillary a)

25
Q

what exits out of Infraorbital foramen (canine fossa) on maxilla bone

A

infra orbital n

26
Q

3 oppenings of zygomatic bone

A

z orbital, z temporal, zfaccial

27
Q

where is the lacramal gland located and what does it do

A

top outer of orbital fossa (wettens eye)

28
Q

where does the the mental and messenteric nerve run in relation to mandible

A

mental- runs thru mandibular foramen and out mental foramen

Messenteric- runs over mandibular notch

29
Q

what protects the enterance of the mandibular foramen

A

Lingula

30
Q

what runs thru infraorbital fissure

A

infraorbital n, zygomatic n

31
Q

what runs thru Sphenopalatine foramen

A

Spenopalatine n (Maxillary n) & Sphenopalatine a of Max. artery

32
Q

what travels thru Greater & lesser palatine foramina

Greater & lesser palatine foramina

A

greater + lesser palantine n

33
Q

what runs thru Pterygoid canal

A

greater petrosal n of facial n + deep petrosal

34
Q

walls of the orbit

A

Superior: orbital part of frontal, lesser wing of sphenoid.

Inferior: orbital surface of body of maxilla

Lateral: orbital surface of frontal process of zygomatic + orbital surface of greater wing of sphenoid.

Medial: lacrimal, orbital plate of ethmoid, body of sphenoid

35
Q

what runs thru Superior orbital fissure

A

CN: III, IV, VI; CN5 (V1)

36
Q

what runs thru Zygomaticoorbital foramen

z facial and z temporal

A

Zygomaticofacial & zygomatictemporal n

An1107- Mod 4 (22 decks)

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