Week 2 - DRY Flashcards
How many permament teeth do adults have?
32
How many incisors do adults have?
8
How many canines do adults have?
4
How many pre molars do adults have?
8
How many molars do adults have?
12
What is the name of the large fan-shaped muscle on the side of the head?
Temporalis
What are the 2 attachments of the temporalis?
Temporal fossa
coronoid process of mandible
If the anterior fibres of the temporalis contract - what is its action on the mandible?
Elevate mandible
If the posterior fibres of the temporalis contract - what is its action on the mandible?
Retract mandible
What type of joint is the tempero-mandibular joint?
Synovial hinge
What are the 2 articular processes that form the TMJ joint?
Condylar process of mandible
Mandibular fossa of temporal bone
Name 5 movements that occur at the TMJ.
Elevation
Depression
Protraction
Retraction
Lateral movements
Name the 4 muscles of mastication
Temporalis
Masseter
Lateral pterygoid
Medial pterygoid
Name the 2 attachments of the masseter muscle.
Zygomatic arch
Outer surface of ramus of mandible (coronoid process as well)
The lateral pterygoid muscle attaches to what surface of the lateral pterygoid plate?
Lateral aspect
The medial pterygoid muscle attaches to what surface of the lateral pterygoid plate?
Medial
How does the lateral pterygoid muslce attach to the mandible?
Enters into the joint capsule of the TMJ to insert onto neck of mandible
To which part of the mandible does the medial pterygoid attach?
Inner surface of ramus
When both lateral pterygoids contract, they cause what movement?
Protrusion