Face

Question 1

Temporalis

Answer 1

Attachments:
- temporal fossa
- coronoid process and ramus of mandible 
Actions:
- elevates mandible 
- retracts mandible (horizontal fibres)
Innervation:
- mandibular nerve

Question 2

Masseter

Answer 2

Attachments:
- zygomatic arch
- angle and ramus of mandible 
Actions:
- elevates mandible
Innervation:
- Mandibular nerve

Question 3

Lateral pterygoid

Answer 3

Attachments:
- lateral pterygoid plate
- TMJ capsule and disc and condyloid process of mandible 
Actions:
- protract mandible
- depresses chin
- large lateral chewing movements
Innervation:
- mandibular nerve

Question 4

Medial pterygoid

Answer 4

Attachments:
- lateral pterygoid plate
- medial surface of ramus of mandible
Actions:
- elevates mandible
- protracts mandible
- small lateral chewing movements (grinding)
Innervation:
- mandibular nerve