Temporal Region

Question 1

What are the muscles of the Temporal region?

Answer 1

Temporalis and Masseter

Question 2

What is the origin of the Temporalis muscle?

Answer 2

floor of the temporal fossa and temporal fascia

Question 3

What is the insertion of the Temporalis muscle?

Answer 3

coronoid process and medial surface of ramus of mandible

Question 4

What is the innervation of the Temporalis muscle?

Answer 4

deep temporal nerve (CN V)

Question 5

What is the blood supply of the Temporalis muscle?

Answer 5

deep temporal branches of maxillary artery

Question 6

What is the action of the Temporalis muscle?

Answer 6

muscle of mastication

Question 7

What is noteworthy about the Temporalis muscle?

Answer 7

derivative of first pharyngeal arch

Question 8

What is the origin of the Masseter muscle?

Answer 8

zygomatic arch

Question 9

What is the insertion of the Masseter muscle?

Answer 9

external surface of the ramus and angle of mandible

Question 10

What is the innervation of the Masseter muscle?

Answer 10

masseteric nerve (CN V)

Question 11

What is the blood supply of the Masseter muscle?

Answer 11

masseteric branches of maxillary artery

Question 12

What is the action of the Masseter muscle?

Answer 12

muscle of mastication

Question 13

What is noteworthy about the Masseter muscle?

Answer 13

powerful chewing muscle

Question 14

What are the muscles of mastication?

Answer 14

temporalis, masseter, lateral and medial pterygoids. (All are innervated by the mandibular division of CN V)

Question 15

What are the boundaries of the Temporal region?

Answer 15

anteriorly: frontal and zygomatic bones
posteriorly and superiorly: the temporal lines
laterally: zygomatic arch
inferiorly: infratemporal crest
(contains the temporalis and masseter muscles)