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A & P: 2 > Cranium And Sinuses > Flashcards

Cranium And Sinuses Flashcards

(49 cards)

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1
Q

Define the globella

A

Smooth portion between the eyebrows

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2
Q

Define Nasion

A

Bridge of nose between the eyes

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3
Q

Define superciliary arch

A

Ridge of bone beneath the eyebrows

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4
Q

Define Supraorbital groove

A

Groove just above the superciliary arches

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5
Q

Define supraorbital margin

A

Upper rim of the eye socket

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6
Q

Mid lateral orbital margin

A

Lateral rim of the eye socket

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7
Q

Define infraorbital margin

A

Lower rim of the eye socket

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8
Q

Define inner canthus

A

Medial junction of the eyelids

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9
Q

Define outer canthus

A

Lateral junction of the eyelids

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10
Q

Define the Acanthion

A

Area between the nose and the upper lip (mustache area)

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11
Q

Define Mentum

A

Chin

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12
Q

Define the vertex

A

Highest point of the skull

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13
Q

What is the mandible angle called

A

The gonion

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14
Q

Define the auricle

A

Ear flap that includes tragus

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15
Q

What is TEA*

A

Top of ear attachment (to scalp)

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16
Q

Define external auditory meatus

A

Ear canal

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17
Q

Define Inion

A

Aka external occipital protuberance (EOP) bony projection on back of head

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18
Q

What parts make up the calavarium

A

Frontal bone
Parietal bones
Occipital bone

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19
Q

What does the frontal bone include

A

The forehead

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20
Q

What do your parietal bones include

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A

Upper lateral skull

21
Q

What does your occipital bone include

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A

Back of skull

22
Q

What bones make up the cranial floor

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A

Sphenoid bone
Temporal bone
Ethmoid bone

23
Q

What are the parts of the frontal bone of the calvarium

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A

The squamosal (vertical ) portion
- superciliary arch
- Supraorbital groove

The orbital (horizontal ) portion
-begins at the Supra orbital margin ( top of eye socket )

24
Q

What are the parts of the parietal bones of the calvarium

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A

The vertex
- where partials join the frontal
- highest point of cranium

The parietal eminence (tubercle )
-widest portion of the skull

25
What are the parts of the occipital bone that make up the calvarium
The squamosal portion the has the EOP The condylar (base of the skull which is foramen magnum) & occipital condyles The Clivus (just anterior to foramen magnum) Jugular foramen ( lateral to foramen magnum for internal jugular vein)
26
What bones make up the cranial floor
Temporal bones, sphenoid bones & Ethmoid bone
27
What part of the temporal bone make up the cranial floor
The squamosal portion, mastoid portion, Petrous portion
28
What parts of the sphenoid bone make up the cranium floor
Sella turcica, greater wings , lesser wings, pterygoid process
29
What parts of the ethmoid bone make up the cranial floor
Labryinths, perpendicular plate, & cribriform & crista galli
30
What are the cranial floor landmarks
Supraorbital groove and TEA ( top ear attachment)
31
What does does the supraorbital groove correspond with
The upper cranial floor ( orbital roof)
32
What does the TEA ( top of ear attachment) correspond with
The level of the petrous ridges
33
Name the skull sutures and where they are located
Sagittal suture ( union of both parietals down the MSP) Coronal suture ( union of the frontal bone to both parietals Squamosal suture ( union of temporal to each parietal ) Lambdoidal suture ( union of the occipital bone to both parietals)
34
What type of movement are cranial sutures
Synarthrodial
35
Define the Bregma
Union of the sagittal suture with coronal suture
36
Define the Lambda
Union of the sagittal and lambdoidal suture
37
Define Pterions
Union of sqamosal suture and coronal suture
38
Define Asterions
Union of squamosal and lambdoidal suture
39
What are fontanels
Soft spots on and infants skull prior to ossification
40
Describe the anterior fontanel
The soft bregma ( fuses @18 months)
41
Describe the posterior fontanel
The soft lambda ( fuses @ 4-6 months)
42
Define mesocephalic
Average shaped skull PR’s 47 degrees to MSP
43
Define brachycephalic
Fat skull PR’s 54 degree to MSP
44
Define dolichocephalic
Thin skull PR’s 40 degrees to MSP
45
Describe frontal sinuses
Located between the inner and outer tables of frontal bone Asymmetrical Completely forms @ age 6
46
Describe ethmoid sinuses
Air cells located with the ethmoidal labyrinth between the orbits Symmetrical
47
Describe maxillary sinuses
Within the body of the maxilla Triangular shaped when viewed anteriorly Symmetrical
48
Describe sphenoid sinuses
Sinus within the body of sphenoid directly beneath the sella turcica
49
What is the osteomeatal complex
The connection network between the maxillary, frontal, and ethmoid sinuses

A & P: 2 (17 decks)

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