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OS3 Test 1 > Paired Bones > Flashcards

Paired Bones Flashcards

1
Q

paired bones of the cranial vault and temorals

A

frontals parietals and temporals

ROTATE EXTERNALLY during flexion

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2
Q

paired bones of the face

A

maxilla, palatines and zygomae

ROTATE EXTERNALLY during flexion

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3
Q

what bones does the parietal articulate with

A
  1. occiput
  2. frontal
  3. sphenoid
  4. temporal
  5. opposite parietal
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4
Q

sutures of the parietal bone

A

bregma and lambda, asterion, pterion

parietosquamous, parietomastoid coronal lambdoidal

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5
Q

what is the only bone that contacts all four fontanelles

A

parietal bone

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6
Q

surface anatomical features of the parietal bones (3)

A

upper temporal ridge - temporal fascia attachment
lower temporal ridge - temporalis muscle origin
temporalis fossae - filled iwth temporal muscle

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7
Q

a groove along the inside of the sagittal suture in which the sagittal sinus runs

A

sagittal sulcus

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8
Q

interior anatomical features of parietal bones

A

sagittal sulcus
anterior and posterior groove for the middle meningeal artery
portion of groove for the Transverse sinus - carries marginal insertion of the tentorium cerebelli

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9
Q

parietal bone
inferior borders move laterally
superior borders move medial and inferior
pterion, asterion, squamous sutures move laterally
sagittal sutures move inferiorly

what is the motion of the SBS

A

sbs flexion - parietal bones externally rotate

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10
Q

parietal
sagittal articulation moves inferiorly
temporal articulation moves laterally
cranium widens

what motion?

A

external rotation of the parietal bones

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11
Q

mechanical and joint related pain of parietal bone SD

A 
cranial syntosis - premature closing of the sutures 
head pain - pain along the suture 
OM & asterion - tension HA 
pterion - temporal HA 
parietosquamous
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12
Q

organ/myofascial dysfunction leading to parietal bone SD

A

middle meningeal a - truama, giant cell arthritis

head face and tooth pain - temporal SD

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13
Q

most common form of synostosis- premature fusion of which suture that restricts transverse growth of the skull

A

sagittal synostosis

sagittal suture

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14
Q

commonly mistaken for posterior postioning plagiocephaly
flattening of the back of the head and compensatory growth of the mastoid process on the ipsilateral side leads to characteristic tilt of cranial base

A

lambdoid synostosis

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15
Q

structures contained within the petrous portion of hte temporal bone

A

otovestibular organ
eustachian tube exits between the sphenoid and temporal bones
border of the foramen lacerum (with sphenoid)
attachment of the tentorium
encloses the internal carotid a
lateral part of the jugular foramen
styloid process

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16
Q

in a newborn skull, what portion of the temporal bone is missing

A

mastoid process

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17
Q

muscles that attach to the temporal bone

A 
splenius
digastric
longissimus capitis 
sternocleidomastoid 
stylohyoid
styloglossus
masseter
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18
Q

internal rotation of the temporals will place pressure no the eustachian tube, resulting in what pitch of tinnitus/

A

high pitch tinnitus

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19
Q

external rotation of the temporals will often produce what pitch of tinnitus

A

low pitch tinnitus

low roaring sound i

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20
Q

where is the axis fo the temporal bone located

A

inferior to the petrous ridge

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21
Q

temporal
squamous portion moves laterally
MP moves medially

A

external rotation

paired with flexion

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22
Q

temporal
squamous portion moves medially
MP moves laterally
zygomatic process becomes more prominent

A

internal rotation

paired with flexion

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23
Q

what bone drives motion of the temporal

A

occiput

through OM artiuclation

24
Q

wobbly wheel is what bone motion

A

temporal physiologic motion

25
Q

mechanical signs and symptoms of temporal bone SD

A

TMJ pain
Head pain along a suture - OM and asterion - tension \ pterion - temporal - parietosquamous
neck pain - SCM and other muscles

26
Q

organ/nerve/muscle signs and symptoms of temporal bone SD

A

dizziness
ear infections
swallowing and chewing - stylohyoid, stylomandibular, styloglossus
tinnitus and eustachian tube dsyfunction - IR with high pitch roar ER with low pitch roar
Bell’s palsy - CNVII

27
Q

why are the frontal bones considered paired?

A

because they start out as two bones in infancy

metopic suture is the remnant of the fusion of these bones, found in 10% of adults

28
Q

what bones does the frontal bone articulate with

A 
parietals 
sphenoid
ethmoid
alcrimals
maxillae
nasals 
zygoma
29
Q

even though the frontal bone is fused, it still has movement as if

A

it is made of two bones

30
Q

plane of movement of frontal bone

A

coronal plane motion

metopic has hinge like action

31
Q

what occurs at the frontal bone during SBS flexion

A

EXTERNAL ROTATION
lateral side moves anterior/lateral and slightly inferior
glabella moves posterior

32
Q

waht occurs at the frontal bone during SBS extension

A

INTERNAL ROTATION

lateral side moves posterior/medial and slightly superior, glabella moves anteriorly

33
Q

what bone moves the frontal bone during external rotation

A

sphenoid

34
Q

mechanical/pain manifestations of frontal bone SD

A

head pain along a suture
coronal - tension | pterion - temporal HA
head pain from diminished primary repsriation and CSF flow d/t increased dural tension at the cribiform plate

35
Q

organ/nerve/muscle manifestations of frontal bone SD

A

sinusitis (allergic or infectious)
visual problems (double vision)
anosmia - frontal influences cribiform plate
frontalis muscle TrP/TP

36
Q

bracycephaly occurs as a result of fusion fo what bones

restricts growth of the anterior fossa resulting in a shorter and wider than normal skull
compensatory vertical growth occurs

A

fusion of both coronal sutures

37
Q

what is bracycephaly assocaited with

A

crouzon, apert, saethre-chotzen, muenke, pfeiffer syndromes

38
Q

premature fusion of what bone results in anterior plagiocephaly

limits the anterior growth fo the skull, invovles top of skull and cranial base

causes deformities of the face, ear, nose and forehead

c shaped deformity

A

premature fusion of one coronal suture

39
Q

start looking here

what are the fontanelles that the parietal bone contacts

A

all four fontanelles

idk what they are called

40
Q

what bones does the parietal bone contact???

A 
occiput
frontal
sphenoid
temporal
opposite parietal
41
Q

how does the parietal bone move during SBS flexion
inferior borders move
superior borders move:
pterion, asterion, squamous sutures move:
sagittal sutures move slightly :

A

ER and
inferior borders move LATERALLY
superior borders move: MEDIALLY AND INFERIORLY
pterion, asterion, squamous sutures move: LATERALLY
sagittal sutures move slightly : INFERIORLY

42
Q

how does the parietal bone move during SBS extension
sagittal articulations move:
temporal articulations move:
cranium

A

IR and
sagittal artiuclations move superiorly
temporal articulations mvoe medially
cranium narrows laterally

43
Q

what is the axis and plane of motion of the parietal bone

A

AP axis

coronal plane of motino

44
Q

what are clinical associations with parietal bone dysfunction

A

cranial syntostosis - premature closing of the sutures
head pain along a suture (OM/ASTERION - tension | pterion - temporal | parietosquamous)
middle meningeal artery
head face and tooth pain

45
Q

what are the parts of the temporal bone

A

squamous portion containg the zygomatic process petrous portion

46
Q

what anatomic structures are associated with the petrous portion of the temporal bone

A 
otovestibular organ
 eustachian tube exit between temporal and sphenodi bone 
border of foramen lacerum with sphenoid 
attachment of the tentorium 
encloses the internal carotid a 
lateral part of the jugular foramen
styloid process
47
Q

what bones do the temporal bones contact

A 
sphenoid 
maxilla 
parietal
occiput 
mandible (tmj)
48
Q

how does the temporal bone move during SBS flexion

A

ER and
squamous portion mvoes laterally
mastoid process moves medially
low pitch

49
Q

how does the temporal bone move during SBS extension

A

IR and
squamous portino moves medially
mastoid portion moves laterally
high pitch

50
Q

what is the axis and plane of motion for the temporal bone

A

axis is inferior to petrous ridge
somewhat oblique transverse axis
motion would be coronalish

51
Q

what are clinical assocations with temporal bone dysfunction

A

tmj pain
head pain along sutures (om and asterion -tension HA, pterion - temporal - paritosquamous)
neck pain - lots fo msucle attachments
dizziness, ear infections, swallowing and chewing, tinnitis and eustachian tube dsyfuntion
bells palsy

52
Q

why is the frontal bone considered a paired bone

A

starts out as two bones before fusing - metopic suture represents this fusion in 10% of people

53
Q

what bones does the frontal bone contact

A 
parietals
sphenoid
ethmoid
lacrimals
maxillae 
nasals
zygoma
54
Q

how does the frontal bone move during SBS flexion

A

ER and
lateral side moves anterior/lateral and slightly inferior
glabella moves posterior

55
Q

how does the frontal bone move during SBS extension

A

IR and

lateral side moves posterior/medial and slightly superior, glabella moves anterior

56
Q

what is the axis and plane of motion for the frontal bone

A

metopic has hinge-like action
coronal plane motion
moves from center of orbital roof through frontal eminence

57
Q

what are clinical associations with frontal bone dysfunciton

A

head pain coronal - tension , pterion with temporal
head pain - from diminished primary respirations and CSF flow d/t increased dural tension at the cribriform plate
sinusitis
visual problems
anosmia
frontalis muscle TrP/TP

OS3 Test 1 (8 decks)

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