SKULL Flashcards

1
Q

Skull contains ____ bones divided into the cranial and facial bones

A

22

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

How many cranial bones are in the skull? How are they divided?

A

8 cranium bones divided into calvaria and floor

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

Which bones articulate with the parietal bone?

A
Frontal
Temporal
Occipital 
Sphenoid
And opposite parietal bones
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What foramen is in the occipital bone and what passes through it?

A

Foramen magnum, the inferior portion of the medulla oblongata passes through to join the spinal cord

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

The ethmoid bone has two lateral masses called

A

Labryinths

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What bones do the sphenoid bone articulate with?

A

All other 7 bones of the cranium

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

The ________ of the temporal bones contains organs of hearing and balance

A

Petromastoid portion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

The occipital bone articulates with

A

Parietals
Temporals
Sphenoid
C1

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

What is the function of facial bones?

A

Provide shape and support for the face

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

Cranial and facial bones are joined by fibrous joints called

A

Sutures (except for mandible)

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

The junction of the coronal and sagittal suture

A

Bregma

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

The junction of lambdoidal and sagittal suture

A

Lambda

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

The junction of the parietal, squamosal, and greater wing of sphenoid

A

Pterion

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

The junction of the occipital, parietal, and mastoid portion of the temporal bone

A

Asterion

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

How many incomplete ossifications are there in a newborns skull?

A

6 called fontanels

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

What are the average measurements of the skull?

A

6 inches side to side
7 front to back
9 vertex to submental region

17
Q

Where is the sphenoid fontanel located?

A

Pterion junction

18
Q

Which cranial type is short and broad from side to side? Petrous portions form what angle with the msp…

A

Brachycephalic, 54 degrees

19
Q

Which cranial type is typical/average? Petrous portions form what angle with the msp…

A

Mesocephalic, 47 degrees

20
Q

Which cranial type is long and narrow side to side? Petrous portions form what angle with the msp…

A

Dolichocephalic, 40 degrees

21
Q

Which of all the sinuses are well developed at birth?

A

Maxillary

22
Q

Another name for maxillary sinuses?

A

Antra of highmore

23
Q

Maxillary sinuses are roughly __ in shape

A

Pyrimidal

24
Q

What is the second largest sinuses?

A

Frontal

25
Q

Where is the ethmoid sinuses located?

A

Lateral masses

26
Q

T or F, Sphenoidal sinuses are always paired

A

False, normally paired but can be SINGLE

27
Q

Where is the sphenoid sinuses located?

A

Sphenoid bone below sella turcica

28
Q

Sinus group visuallized in the lateral view

A

All 4 sinuses

29
Q

What bone articulates with the zygoma to help form cheeks?

A

Maxillary bone

30
Q

Facial bone that helps form bridge of the nose and articulates with…

A

Nasal bones, articulates with opposite nasal bones, maxillary bone, and frontal bone

31
Q

Zygomatic process is found on …

A

Maxillary and temporal bone

32
Q

Smallest bone in the skull

A

Lacrimal

33
Q

What passes through the lacrimal foramen?

A

Tear of duct

34
Q

The lacrimal forms the __ wall of the orbits

A

Medial

35
Q

Maxillary bone forms the __ walls and most of the __ of the nasal cavity

A

Lateral, floor