The masseter originates from the _______.
The masseter originates from the inferior border of the zygomatic arch; specifically, its superficial head and deep head originate from the anterior two thirds or posterior one third of the inferior border, respectively. Its superficial head inserts into the lateral surface of the angle of the mandible; its deep head inserts into the ramus and body of the mandible.
Condyle of the mandible
Infratemporal crest of the sphenoid bone
Inferior border of the zygomatic arch
Pyramidal process of the palatine bone