6. head and face muscles

Question 1

masseter origin and insertion

Answer 1

or
- lower zygomatic bone and zygomatic process

in
- lateral surface of ramus of mandible

Question 2

masseter action

Answer 2

elevation of mandible

Question 3

masseter innvervation

Answer 3

madibular division of trigeminal nerve

Question 4

temporalis origin and insertion

Answer 4

or

• temporal fossa (parts of parietal, temporal, frontal, sphenoid bones
• temporal fascia

in
- coronoid process of mandible and anterior ramus of mandible

Question 5

temporalis action

Answer 5

elevation and retraction of mandible

Question 6

temporalis innervation

Answer 6

mandibular division of trigeminal nerve

Question 7

medial pterygoid origin and insertion

Answer 7

or
- parts of palatine, sphenoid and maxilla bones

in
- medial (inside) side of mandible near angle

Question 8

medial pterygoid action

Answer 8

elevation and side to side moment of mandible

Question 9

medial pterygoid innervation

Answer 9

mandibular division of trigeminal nerve

Question 10

lateral pterygoid origin and insertion

Answer 10

or
- parts of sphenoid and maxilla bones

in
- temporomandibular joint capsule and condylar process of mandible

Question 11

lateral pterygoid action

Answer 11

protrusion and side to side movement of mandible

Question 12

lateral pterygoin innervation

Answer 12

mandibular division of trigeminal nerve

Question 13

temporalmandibular joint (TMJ) muscles
- innervation

Answer 13

temporalis
masseter
lat./med. pterygoid

• mandibular nerve (branch of trigeminal)