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RAD 105 Skull > Cranium and facial bone > Flashcards

Cranium and facial bone Flashcards

1
Q

How many bones in the Cranium?

A

8

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2
Q

How many bones in the Facial?

A

14

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3
Q

What are the cranium bones?

A

P E S T OF 8

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4
Q

How many bones make up the floor of the skull?

A

R and L Temporal bones, ethmoid, and sphenoid

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5
Q

how are the majority of the cranial bones classified?

A

Flat bone

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6
Q

what bone does glabella and supraorbital groove belong to?

A

Frontal bone

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7
Q

Smooth raised prominence between the eyebrows just above the bridge of the nose is called….

A

Glabella

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8
Q

what frontal bone feature corresponds to the floor of anterior fossa of cranial vault?

A

Supraorbital groove

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9
Q

what part of the frontal bone provide a spot for ethmoid bone to attach to?

A

Ethmoid notch

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10
Q

how many cranial bones does frontal bone articulate with? what are they?

A

4, R and L Parietal, Sphenoid, ethmoid

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11
Q

How many facial bones does the frontal bone articulate with? what are they?

A

8 r and left nasal, r and left zygoma, r and left lacrimal, right and left maxilla

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12
Q

Where is the widest portion of the skull?

A

Parietal tubercles

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13
Q

how mane bones do each parietal bone articulates with? and what are they?

A

5, Frontal, occipital, temporal, sphenoid, the other parietal bone

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14
Q

Prominent bump or protuberance at the inferoposterior portion of the skull describes …

A

Inion

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15
Q

What feature does the foramen magnum belong to?

A

Occipital bone

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16
Q

where does the Atlas bone articulate with the occipital bone?

A

Occipital Condyle

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17
Q

How many bones does the occipital bone articulate with? What are they?

A

6, 2x Parietal bones, Sphenoid, 2x temporal, atlas

18
Q

What bone houses delicate organs of hearing and balance?

A

Temporal bones

19
Q

How many divisions does the temporal bone have?

A

3

20
Q

Squamous, Mastoid, and Petrous are the divisions of…

A

Temporal bone

21
Q

What is the most vulnerable portion of the entire skull to fracture because of its’ thinness?

A

Temporal bone

22
Q

zygomatic arch and process belong to…

A

Temporal bone

23
Q

EAM belongs to what cranial bone?

A

Temporal bone

24
Q

Temporomandibular is ______ to EAM and is a ______ where mandible sits

A

Anterior, depression

25
Q

Petrous Pyramid belongs to _____ of the ____ bone

A

Petrous division of the Temporal bone

26
Q

What houses the organs of hearing and equilibrium including mastoid air cells?

A

Petrous portion

27
Q

what is the thickest and densest bone of the cranium

A

Petrous Pyramid

28
Q

Project anteriorly and toward the midline from the area of the EAM describes…

A

Petrous Pyramid

29
Q

An important external landmark corresponds to petrous pyramid, what is this landmark?

A

TEA

30
Q

what other cranial bones do the temporal bone articulate with?

A

Parietal, occipital, and sphenoid

31
Q

What 2 facial bones does the temporal bone articulate with?

A

Zygoma and Mandible

32
Q

what bone is centrally located and forms the anchor for all 8 cranial bones?

A

Sphenoid bone

33
Q

what are all the parts of the sphenoid bone?

A

Greater wings, lesser wings, sella turcica, Dorsum Sellae, clivus, posterior process, anterior process

34
Q

What structure is a home for pituitary gland?

A

Sella Turcica of the sphenoid bone

35
Q

Optic groove and optic canal belongs to which portion of the sphenoid bone?

A

anterior

36
Q

how many bones does the sphenoid bone articulate with? and what are they?

A

7, frontal, ethmoid, 2x temporal, 2x parietal, occipital

37
Q

what 5 facial bones does the sphenoid bone articulate with?

A

2x palatine, 2x zygomatic, vomer

38
Q

what are the parts of the ethmoid bone?

A

Crista Galli, Cribriform plate, perpendicular plate, labyrinth, and Superior nasal Concha

39
Q

which part of the ethmoid bone contains many small openings for segments branches of olfactory nerves to pass?

A

Cribriform plate

40
Q

What part of the ethmoid bone contains the ethmoid air cells or sinuses?

A

Labyrinths

41
Q

Ethmoid articulates with 2 cranial bones, what are they?

A

Frontal and Sphenoid

42
Q

how many facial bones does the ethmoid articulate with? what are they?

A

11,

2x Maxilla, 2x lacrimal, 2x nasal, 2x inf nasal conchae, 2x palatine bones, Vomer

RAD 105 Skull (3 decks)

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