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Skull > Anatomy > Flashcards

Anatomy Flashcards

1
Q

How many bones are in the cranium?

A

8

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2
Q

How many of the cranium bones are paired? Which ones?

A

2- Rt and Lt Parietal

Rt and Lt Temporal

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3
Q

What are all 8 cranium bones?

A

Frontal, 2 parietal, 2 temporal, sphenoid, ethmoid, occipital

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4
Q

What are the 4 bones that make up the skull cap?

A

Frontal
Parietal
Temporal
Occipital

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5
Q

What is another name for the skullcap?

A

Cal aria

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6
Q

Which bones make up the floor of the cranium?

A 
Frontal
Ethmoid
Sphenoid
Parietal
Temporal
Occipital
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7
Q

The slight depression above the eyebrows is known as what? Which bone is this a part of?

A

The supra orbital groove (SOG), Frontal

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8
Q

The superior rim of each orbit is known as what? Which bone is this a part of?

A

The supra orbital margin (SOM), Frontal

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9
Q

A small hole or opening within the supra orbital margin slightly medial to the midpoint is what? Which bone is this a part of?

A

Supra orbital notch/foramen, Frontal

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10
Q

What is the large rounded prominence of the frontal bone?

A

Frontal tuberosity

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11
Q

What is the superciliary ridge? Which bone is this a part of?

A

The interior arch of the top of the orbit, Frontal

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12
Q

Which bones articulate with the frontal bone?

A

Rt and Lt Parietal
Ethmoid
Sphenoid

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13
Q

The widest portion of the skull lies between what?

A

The parietal tubercles/eminences

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14
Q

What bones articulate with the parietal bones?

A 
Frontal
Occipital 
A temporal on each side
Sphenoid
Opposite parietal
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15
Q

Which portion of the occipital bone articulates with the atlas?

A

The occipital condyles

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16
Q

What are the 3 portions of the temporal bone?

A
  1. Mastoid portion
  2. Squamous portion
  3. Petrous portion
17
Q

What is the thin upper portion of the temporal bone?

A

The squamous portion

18
Q

The mastoid portion of the temporal bone contains what process?

A

The mastoid process

19
Q

What is another nam of the petrous portion of the temporal bone?

A

The petrous ridges

20
Q

What are the foramens associated with the interior portion of the temporal bones?

A

The rt and lt jugular foramens

The rt and lt internal acoustic meatus

21
Q

Which cranial bones articulate with the temporal bone?

A

Parietal
Occipital
Sphenoid

22
Q

What is the anchor for all of the cranial bones?

A

The sphenoid

23
Q

What three foramen are a part of the sphenoid from anterior to posterior position?

A

Foramen rotundum
Foramen ovale
Foramen spinosum

24
Q

Which gland is surrounded by the sella turcica?

A

The pituitary gland

25
Q

What part of the spheniod is posterior to the sella turcica?

A

The dorsum sella

26
Q

Which portion of the sphenoid bone forms a base of support for the pons?

A

The clivus

27
Q

The feet of the sphenoid, or bat, are called what?

A

Lateral Pterygoid process and hamulus

28
Q

Looking at the ethmoid bone from the coronal view, what are the 3 parts from superior to inferior?

A

Crista galli
Cribiform Plate
Perpendicular Plate

29
Q

What are the large processes that extend laterally on the ethmoid bone?

A

Lateral Labyrinth (masses)

30
Q

What do the lateral masses contain?

A

Ethmoid air cells or sinuses

31
Q

What extends medially and downward from the lateral masses?

A

Superior and middle nasal concha or turbinates

32
Q

Name the 4 cranial sutures.

A
  1. Coronal
  2. Lambdoidal
  3. Squamosal
  4. Sagittal
33
Q

Name the 4 junction points on the cranium. (where each suture meets)

A
  1. Asterion
  2. Bregma
  3. Lambda
  4. Pterion

Skull (2 decks)

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