Which of the following muscles originates from the
zygomatic process of maxilla?
Masseter is one of the muscles of mastication, covering the lateral surface of mandibular ramus.
Origin: 

​Superficial layer: From anterior 2/3rd of lower border of zygomatic arch and adjoining zygomatic process of maxilla.
Deep layer: From deep surface of zygomatic arch.

Insertion: 

Superficial layer: Into lower part of lateral surface of ramus.
Deep layer: Into rest of the ramus of mandible.

Nerve Supply:

Masseteric nerve, a branch of anterior division of mandibular nerve.
Medial pterygoid
Lateral pterygoid
Superficial layer of masseter
Posterior portion of the buccinator