Last update:

Masseter Muscle – Attachments, Actions & Innervation

image descriptionMasseter Muscle

Masseter Muscle attached to the skull with other muscles
Masseter Muscle attached to the skull with other muscles
Masseter Muscle attached to the skull with other muscles
Masseter Muscle attached to the skull alone
1
2
3
4

image descriptionAttachments of Masseter Muscle: Origin & Insertion

Origin: (proximal attachments):
Zygomatic arch (medial surface and inferior border).

Insertion: (distal attachments):
Lateral surface of angle and ramus of mandible.

Masseter Muscle attached to the skull with other muscles
Masseter Muscle attached to the skull alone
Masseter Muscle - Origin and Insertion
1
2
3

Actions of Masseter Muscle on the mandible:

image descriptionElevates and protracts (protrudes) mandible to close jaw.

Mandible elevation (1)
Mandible elevation (1)
Mandible elevation (3)
Mandible elevation (4)
Mandible elevation (5)
Mandible elevation (1)

Nerve to Muscle and its Spinal Segment:

Mandibular branch of trigemminal nerve (V).

Overview:

Masseter Muscle - Test yourself
Masseter Muscle - Test yourself 1
Masseter Muscle - Test yourself 2
Masseter Muscle - Test yourself 3
Masseter Muscle - Test yourself 4
Masseter Muscle - Test yourself 5
Masseter Muscle - Test yourself 6
Masseter Muscle - Test yourself 7
Test yourself while observing the Masseter muscle
1
2
3
4
5
6
7
8