Head & Neck

Question 1

Tempolaris

Answer 1

O: temporal Fossa
I: coronoid process ( ramus of Mandible , open to Palpate )
A: elevation of mandible
Retraction of mandible
N: trigiminal n
Note: associated tension headach & tmj

Question 2

Masseter

Answer 2

O: superficial part: zygomatic process ( maxilla ) inferior border of zygomatic arch
Deep part : posterior aspect of inferior border of zygomatic arch
I: sup: angle & ramus of mandible
Deep: superior ramus & coronoid process of mandible
A: elevation of mandible ( clenches teeths)
Protract mandible( ant fibre) retract ( post)
N: trigiminal n
Notes : Prime mover in elevation of the mandible ( close mouth)
Considered Strongest Muscle in the body

Question 3

Lateral Pterygoid

Answer 3

Superior : o : Greater wing of sphenoid / I: capsular , Articular disc of tml
Inferior o: lateral surface of lateral pterygoid plate / I: neck of Mandible condyle
A: protraction & Depression of Mandible ( open Jaw )
Lateral deviation of mandible to side
N: trigiminal 5
Notes : only muscle of Mastication open Jaw!!!!
B/c of attachtment point, associated with tmj

Question 4

Medial Pterygoid

Answer 4

O: medial surface of lateral pterygoid plate
I: inner surface of mandibular ramus & angle of mandible
A: Elevation of mandible (,cletch teeth
Lateral deviation of mandible
N; trigiminal 5
Notes: most responsible for deviation

Question 5

Trapezius

Answer 5

O:
Upper: EOP , nuchal line & nuchal ligament
Middle : SPs of C7-T5
Lower : Sps T5 -T12
I: Lateral 1/2 of Clavicle , Acromion , Spine of Scapula
A: elevation & retraction ( adduction) of scapula
Upward Rotation of Scapula
Unilateral : Lateral flexion of head
Bilateral