Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

RT 67 skull > Skull > Flashcards

Skull Flashcards

(80 cards)

Start Studying
1
Q

The skull is composed of ___ separate bones and divided into 2 classifications (cranial and facial bones)

A

22 ( cranial, 14 facial bones)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

How many bones does the cranium consists of?

A

8 cranial bones

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

The 8 cranial bones are dived further into the ____ & the ____.

A
  1. Calaveria ( aka: Vault)
    - Frontal
    - Occipital
    - Rt. & Lt .Parietal
  2. Floor ( aka: Base)
    - Ethmoid
    - Shenoid
    - Rt. & Lt. temporal
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What is the purpose of the cranial bones?

A

Form a protective housing around the brain

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Name the bones that make up the Calaveria of the cranium

A
  1. Frontal
  2. Occipital
  3. Rt. Parietal
  4. Left Parietal
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Name the bones that make up the floor of the cranium

A
  1. Ethmoid
  2. Sphenoid
  3. Rt. Temporal
  4. Left Temporal
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

The cranial floor is divided into which regions?

A
  1. Anterior
  2. Middle
  3. Posterior
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What is the vertical portion of the frontal bone

A
  1. Frontal squama
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

The smooth region between the supercilliary arches is termed _____.

A

Glabella

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Midpoint of the frontalnasal suture is termed _____.

A

Nasion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Small, cube shaped bone that consists of a horizontal plate, vertical plate and 2 light spongy lateral masses is termed______.

A

Ethmoid bone

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What does the eithmoid bone articulate with?

A
  • Frontal
  • Sphenoid
  • Lacrimal
  • Maxilla
  • vomer
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

The ___ bones are square and have a convex external surface and a concave internal surface.

A

Parietal bones

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

_____ articulates with frontal, temporal, occipital, sphenoid and opposite side of the parietal bones of the cranium.

A

Parietal bone

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

the widest point of the head is the ?

A

Parietal eminence

Bulge of the parietal bone

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

____ is an irregular wedge shaped bone that resembles a bat.

A

Sphenoid bone

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What does the sphenoid bone consists of?

A
  1. Body
  2. 2 lesser wings
  3. 2 greater wings
  4. 2 ptyergoid process
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Deep depression of the sphenoid bone is teremd ____.

A

Sella turcica

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

_____ is situated at the posterioinferior part of the cranium

A

Occipital bone

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

What makes up the occipital bone?

A
  1. Squama
    2 (2) occiptial condyles
  2. Basilar portion
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

The _____ articulates with the (2 parietal bones, (2) temporal bones, sphenoid and the 1st cervical vertebrae.

A

Occiptial bone

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

What type of morphology is the standard or typical skull in which the width is between 75% & 80% of length?

A

Mesocephalic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Which morphology skull is described as short from front to back and broad from side to side
(width is 80% or more of length)

A

Brachycephalic ( pug)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

which morphology skull is long from front to back, narrow from side to side and deep from vertex to base ( width is less than 75% of length)

A

Dolichocephalic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
When does the skull ossify
in the late 2nd month of development
26
In the fetal skull , bones are seperated by unossified membranes termed _____. why?
Fontanels to allow compression of the skull during delivery * is replaced with bone after the 1 st year
27
Which suture separates the frontal and parietal bones of the skull
coronal suture
28
____ marks the junction of the 2 parietal bones
Sagittal suture
29
Which suture connects the parietal and temporal bones with occipital bones
Lambdodial suture
30
Which suture connects the temporal with the lower border of the parietal
Squamosal suture
31
the skull is part of the _____ skeleton
axial
32
What is the function of the skull
* Encloses and protects the brain | * it is attachment for head and neck muscles
33
name all 8 of the cranial bones
1. Frontal 2. Parietal (rt. & lt.) 3. Occipital 4. Temporal (rt. & lt. ) 5. Ethmoid 6. Sphenoid
34
What should be done for the pediatric patient when positioning for skull
Shield thyroid and thymus
35
List the projections in a skull series
``` 1. PA 2 .PA Caldwell 3. RT & Lt Laterals 4. AP axail Towne 5. PA axial Haas 6. SMV (Submentovertex) ```
36
What does SMV stand for?
Submentovertex
37
1. By 9 months the growth of the skull is _____ the adult size 2. _____ by 2 years old. 3. ____ adult size by 8-9 yrs. of age
1. 1/2 2. 3/4 3. 100%
38
the face enlarges between ____ to ____ years of age.
6-13
39
What is the last bone in the calvaria and what is its function?
1. Occipital bone | 2. Houses the foramen magnum
40
Why would your perform an PA axial projection with CR at 30 degress rather than 15 degress caudwell?
30 degrees to see rotundum foramina
41
_____ is often referred to the reverse Caldwell
AP Axial skull This is not the Towne's method because the Townes has a 30 degree caudal angle and the AP axial skull only has 15 degree cephalad angle
42
When the patient can not be positioned for a PA or PA axial projection , a similar but magnified image can be obtained with which projection?
AP projection
43
PA Axial Haas radiograph is similar to AP axial (town) except?
* Dorsum sellae appears larger within foramen magnum | * There is magnification of occipital bone
44
Why is PA Axial Hass method performed ?
Done instead of AP Axial Townes for obesed patients who can not be adjusted for AP. Done to see sellar structures in foramen magnum
45
For SMV projection , what indicates full neck extension on the radiograph?
* Mandibular condyles anterior to petrous ridges | * mental protruberance superimposed over anterior frontal lobe
46
Name the 5 common positioning errors
1. Rotation 2. Tilt 3. Excessive Flexion 4. Excessive extension 5. Incorrect CR angle
47
The midline point at the junction of the upper lip and the nasal septum is called
acanthion
48
What does the ethmoid consists of?
* Horizontal plate * Vertical plate * 2 light spongy mass= Labyrinths
49
Horizontal portion of the ethmoid bone is called _____. Vertical portion of eithmoid bone is called ______.
1. Cribiform plate | 2. Perpendicular plate
50
Conical projection at anterior midline of cribiform plate is known as _____
Crista galli
51
_____ contain ethmoid sinuses or air cells.
Labyrinths
52
What does the sphenoid bone consists of?
* Body * 2 lesser wings * 2 greater wings * 2 pterygoid processes
53
deep depression on superior surface of sphenoid body is called ______
Sella turcica | houses pituitary gland
54
____ houses pituitary gland
sella turcica of sphenoid
55
____ is the posterior border of sella
Dorsum sellae
56
____ is the slanted area of bone posterior and inferior to dorsum of the sphenoid
Clivus ( supports pons of the brain)
57
___ supports pons of the brain
Clivus
58
What forms the posteromedial portion of orbital roofs
Lesser wings of sphenoid bone
59
Lesser wings arise ___ of sphenoid body , where as greater wings arise from ____ of body
1. anterior & superior | 2. Sides
60
_____ articulates with all of the 7 bones of the cranium and the zygoma
Sphenoid bone
61
The petrous ridge is at the level of the ______.
Top of ear attachment (TEA)
62
fractures of the skull that appear jagged or irregular line are known as _____.
Linear fractures -Cause structural widening
63
____ are sometimes called "Ping pong fractures", | fractures causing a portion of skull to be depressed into the cranial cavity .
Depressed fractures - Usually found in children ( similar to green stick) - May require tangital projections
64
Fracture located at the base of the skull is known as
Basal fracture (seen through temporal bone)
65
The pterygoids articulate with ____ anterior and _____
Palatine bones and Vomer
66
What does an enlarged sella turcica indicate?
Pituitary adenoma
67
1 or more bone tumors that originate in the bone marrow causing destruction of the bone
multiple myeloma
68
Name 3 indications for cranial radiography
1. Skull fractures 2. Gun shot wounds 3. Paget's disease ( skull is a common site for this)
69
Fracture of the floor of the orbit is known as?
Blow out
70
Fracture to one side of a structure caused by trauma to the other sideis known as
Contre-coup
71
Bilateral horizontal fractures of the maxillae
Le Fort
72
Fracture of the zygomatic arch, and orbital floor/ rim, & disclocation of the frontozygomatic structure is known as?
Tripod
73
____ is suggested by air fluid level in sphenoid sinus, bleeding from ear to ear or presence of CSF
Basal skull fracture
74
Inflammation of mastoid antrum and air cells
mastoiditis
75
inflammation of bone owing to a pyogenic infection
Osteomyelitis
76
Increased density of atypically soft bone
Osteopetrosis
77
loss of bone density
osteporosis
78
Thick soft bone marked by bowing and fractures
Paget disease
79
What is another name for Nuerological disorder known as Rochin-Douvneaud's .
Superior orbital fissure
80
Which projection are superior orbital fissure best seen?
PA axial, 20-25 degrees caudal

RT 67 skull (6 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions