skull, TMJ and muscle mastication Flashcards
1
Q
skull regions
A
- calvaria = calva and cranial base
- cranium = calva, cranial base, and maxilla
2
Q
what is a suture
A
a fibrous joint - synarthrosis
3
Q
sutures of the skull
A
- coronal
- mid-saggital
- lambdoid
- fontanel
4
Q
skull bones
A
- occipital
- parietal
- frontal
- temporal
- sphenoid
5
Q
skeleton of the face
A
- zygomatic arch
- maxillae
- mandible
- nasal bone
- mastoid process
6
Q
what are the components of the TMJ
A
- mandibular condyle
- articular eminance
- articular discs
- synovial cavity
- ligaments
7
Q
what is the TMJ
A
- tempomandibular joint
- bilateral synovial joint
- connects mandible to temporal bone
- allows chewing, skeaking, yawning
8
Q
mandibular condyle
A
- a rounded bony projection at the uppermost part of mandible
- forms articulating surface of TMJ
9
Q
articular eminence
A
- slightly raised portion of the temporal bone
- infront of the mandibular condyle
- guide movement of jaw during opening and closing
10
Q
articular disc
A
- fibrocartilaginous disc between mandibular condyle and articular process
- shock absorption and distributes forces during movement
11
Q
synovial cavity
A
- lined by synovial membrane
- reducing friction during movement
12
Q
ligaments in TMJ
A
- stability and support
- collagen type I
13
Q
4 muscles of mastication
A
- masseter
- temporalis
- medial pterygoid
- lateral pterygoid
14
Q
origin and insertion of masseter
A
- origin = zygomatic arch
- insertion = lateral aspect of the mandible
15
Q
origin and insertion of temporalis
A
- origion = temporal line
- insertion = conroid process
