Unit 2: Skull Flashcards
1
Q
Layers of the skull:
A
Skin
Connective tissue
Aponeurotic layer
Loose connective tissue
Pericranium
2
Q
2 parts of the skull
A
- neurocranium
- Splanchnocranium or facial skeleton
3
Q
neurocranium bones
A
- Contains the nervous system
- Consists of 8 bones
4 odd: - occipital
- sphenoid
- ethmoid
- frontal
2 pairs: - parietal
- temporal
4
Q
splanchnocranium (facial skeleton) bones
A
- 14 bones
2 odd: - vomer
- mandible
Pairs: - maxilla bone
- palatine bone
- cheekbone
- nasal
- uguis
- inferior nasal concha
5
Q
Parietal bone
A
- An even bone
- Curved like a concave tile towards the inside of the skull
- They form the side walls and roof of the cranial vault and articulate with each other in the midline in the sagittal suture
- Articulate with occipital bone in the lambdoid suture
6
Q
Temporal bone
A
Parts:
* Scaly portion: it is the most flattened part of the bone
* Mastoid region: posterior portion
* Boulder or petrous portion
7
Q
Vomer bone
A
- lower and posterior part of the nasal septum
8
Q
Mandible
A
9
Q
Ramus
A
- projections (1 on each side) that are directed upwards from the back body - 2 processes:
- Angle
- Condylar process - articulates with the temporal bone
10
Q
Maxilla bone
A
- upper jaw
11
Q
Palatine bone
A
- forms back of the hard palate, the floor and side walls of the nostrils
12
Q
Zygomatic
A
- cheekbone
13
Q
Nasal
A
they form the upper part of the nasal bridge
14
Q
Coronal suture
A
- parietal part - parietal lobe/bone area
- right and left side
15
Q
Sagittal suture
A
16
Q
Squamous Suture
A
- temporal part
17
Q
Sphenosquamos suture
A
- sphenoidal part
- sphenoid bone area
18
Q
Lamboid suture
A
19
Q
Sphenoid
A
1
20
Q
Cygomatic
A
2
21
Q
Maxila
A
3
22
Q
Ethmoid
A
4
23
Q
Lacrimal
A
5
24
Q
Frontal
A
6
25
Q
Palatine
A
7
26
Q
Nasal
A
8
27
Q
Foramen magnum
A
28
Q
foramen rotundum
A
29
Q
Foramen ovale
A
30
Q
Foramen spinosum
A
31
Q
Foramen internal acoustic meatus
A
32
Q
Foramen hypoglossal canal
A
