Mandible Flashcards
Lateral Pterygoids
O- infra temporal surf and crest of sphenoid bone
A- uni) lat deviate mandible to opp side
Bilat) protract mandible
I- articular disc and capsule of temporomandibular joint
N- trigeminal
Medial Pterygoids
O- medial surf of lat pterygoid bone A- uni) lat deviate the mandible to opp side Bilat) elevate and protract mandible I- medial surf of Remus of mandible N- trigeminal
Masseter
O- zygomatic arch
A- elevate mandible
I- angle and Remus of mandible
N- trigeminal
Temporalis
O- temporal fossa and fascia
A- elevate and retract the mandible
I- coronoid process and anterior edge of ramus of mandible
N- trigeminal
Suprahyoids
O- underside of mandible
A- elevate tongue and depress mandible
I- hyoid bone
N- trigeminal or facial
Digastric
O- mastoid process
A- depress mandible, elevate hyoid bone and retract mandible
I- infer border of mandible
N- trigeminal or facial
Platysma
O- fascia to pectoralis major
A- depress mandible and frown
I- lower part of face
N- facial