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Restorative Art 1 > RA 1 Exam 1 Skull > Flashcards

RA 1 Exam 1 Skull Flashcards

1
Q

The skull functions as the skeleton of the head and composed of 2 sections:
cranium (8) and face (14) bones.

A

The head is the skull with the fleshy parts added. The skull is the bony framework of the head.

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2
Q

Purpose of Skull

A

Protect the brain
Support the jaws
Serve as an attachment for muscles
Give form to the head

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3
Q

The geometric form of the skull is an oval from a front, side, or top view, there are variations.

A 
Bones of the Cranium:
Occipital 1
Parietal 2
Temporal 2
Frontal 1
Ethmoid 1
Sphenoid 1
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4
Q 
Male Skull
Size - Relatively large
Frontonasal angle - Sharp angular
Supraorbital ridges - Prominent
Forehead - Slopes backward
Surface cheekbone - Rough concave
Mandible tip (chin) - Squarer
Foramen magnum - Large long
Mastoid processes - Large
A 
Female Skull
Size - Relatively small
Frontonasal angle - Smooth curve
Supraorbital ridges - Poorly developed
Forehead - Nearly vertical
Surface cheekbone - Smooth flat
Mandible tip (chin) - Pointed
Foramen magnum - Small round
Mastoid processes - Small
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5
Q

Surface Bones of the Head (6/8)

A 
Frontal
Occipital
Parietal 2
Temporal 2
Ethmoid - non surface
Sphenoid - non surface
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6
Q

Anterior 1/3 of cranium forming the forehead, part of eye socket. Most of the anterior of the cranial floor.

A

Frontal

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7
Q

Comprised of 2 planes vertical (make up the forehead) and horizontal/crown (make up superior part of the cranium.

A

Frontal

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8
Q

Frontal Bone Eminences RA significance

A 
Frontal Eminences (2)
Supraorbital Margin (2)
Superciliary arches (2)
Glabella (1)
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9
Q

Rounded prominences on either side of the median line and a little inferior to the center of the frontal bone.

A

Frontal Eminences (2)

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10
Q

Warm-color area of the face, appears asymmetry

A

Frontal Eminences (2)

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11
Q

Superior rim of the eye socket (behind eye brows)

A

Supraorbital Margin (2)

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12
Q

Inferior part of the forehead just Superior to the medial ends of the eyebrows.

A

Superciliary arches (2)

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13
Q

Elevation located between the superciliary arches on the Inferior part of the frontal bone immediately above the root of the nose.

A

Glabella (1)

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14
Q

Point at which the two nasal bones touch the frontal bone that is inferior to the glabella.

A

Root

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15
Q

Frontal bone Articulates with

A

Parietal bones at the Coronal Suture

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16
Q

The lowest most posterior part of the back and base of the cranium that acts as a Cradle for the brain.

A

Occipital

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17
Q

Occipital Bone Eminences RA significance

A

Occipital Protuberance

Foramen Magnum

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18
Q

Opening in the occipital bone through which the spinal cord, spinal arteries, and nerves pass

A

Foramen Magnum

19
Q

Located between 2 Mastoid Processes and assist in securing the head to the body in a decapitation death

A

Foramen Magnum

20
Q

the prominence at the center of the external surface of the occipital bone.

A

Occipital protuberance

21
Q

Occipital bone Articulates with

A

Parietal bone at Lambdiodal Suture

Temporal bone at the Squamosal Suture

22
Q

Forms superior portion of the sides and back of the cranium and posterior 2/3 of roof of cranium

A

Parietal

23
Q

Parietal Bone Eminences RA significance

A

Parietal eminence
Vertex
Crown

24
Q

Marked convex on the outer surfaces of the parietal bones. Widest part of the cranium. Located above posterior border of the ears.

A

Parietal eminence

25
Q

Highest part of the cranium

A

Vertex

26
Q

Area at the top/above of the cranium delineated by connecting four points together.

A

Crown

27
Q

Where the king’s crown would rest on the 2 frontal eminences & 2 parietal eminences

A

Four Points

28
Q

Parietal bone Articulates with

A

Occipital bone at Lambdiodal SutureTemporal bone at the Squamosal Suture
Frontal bone at Coronal Suture
Opposite side parietal at Sagittal Suture

29
Q

Inferior portion of the sides and base of the cranium located inferior to parietal bones and anterior to occipital bone

A

Temporal

30
Q

Parietal Bone Eminences RA significance

A 
Squama
Zygomatic arch (2)
Mandibular fossa (2)
External auditory meatus (2)
Mastoid process (2)
31
Q

like fish scale its the thin superior part of the temporal bone

A

Squama

32
Q

Long thin arched process extending anteriorly from the squama to the zygomatic bone.

A

Zygomatic arch

32
Q

Its immediately lateral (outside) the Squama and house the Temporalis muscle. In elderly emaciate case atrophy and dehydrate cause it to shrink as sunken temples and require tissue builder only after consulting a photograph

A

Temporal Cavity

33
Q

Lies above the external auditory meatus and divides the length of the ear in half.

A

Zygomatic arch

34
Q

Small oval depression or socket on the underside of the temporal bone.

A

Mandibular fossa

35
Q

Anterior to the external auditory meatus. Condyle of the mandible articulates in this depression.

A

Mandibular fossa

36
Q

Opening of the ear passage located in front of the mastoid process

A

External Auditory Meatus (2)

37
Q

Temporal bone Articulates with

A

Parietal bone at Squamosa Suture
Occipital bone at Lambdoidal Suture
Greater wing of the Sphenoid bone

38
Q

Rounded projection of the interior portion of temporal bone just media to the lobe of the ear.

A

Mastoid Process (2)

39
Q

attaches to the mastoid process and the widest part of the neck measured by a straight line extending between the midpoint of the bellies of these 2 muscles

A

Sternocleidomastid Muscles

40
Q

2 non-surface bones of the head

A

Ethmoid

Sphenoid

41
Q

horizontal plate that forms the roof of the nasal cavity and closes the anterior part of the base of the cranium.

A

Ethmoid

42
Q

located at the anterior part of the base of the skull and binds the other cranial bones together

A

Sphenoid

Restorative Art 1 (6 decks)

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