Masseter Muscle

Question 1

What are the origins of the Masseter Muscle?

Answer 1

Superficial and Deep

Question 2

The Superficial Origin of the Masseter, originates from what location?

Answer 2

anterior 2/3’s of the inferior zygomatic arch

Question 3

The Deep Origin of the Masseter, originates from what location?

Answer 3

posterior 1/3 medial of the zygomatic arch

Question 4

What are the insertions of the Masseter Muscle?

Answer 4

Superficial and Deep

Question 5

The Superficial insertions of the Masseter is located where?

Answer 5

lower 1/2 exterior surface of Ramus and angle of the Mandible

Question 6

The Deep insertion of the Masseter is located where?

Answer 6

lower 1/2 of exterior Ramus

Question 7

The action of the Masseter Muscle is?

Answer 7

elevation of the mandible

lifts it up & close

Question 8

Describe the Masseter Muscle

Answer 8

it is a very large muscle, very thick and very powerful.

Question 9

An increase of the cellular volume in the Masseter Muscle is known as?
(It can happen bi-laterally or uni-laterally)

Answer 9

Masseter Hypotrophy