Information about Pterygoid

The vomer (from Latin vomer, -ĕris, "ploughshare") is one of the unpaired facial bones of the skull. It is located in the midsagittal line, and touches the sphenoid, the ethmoid, the left and right palatine bones, and the left and right maxillary bones.
..... Click the link for more information.

The lateral pterygoid (or external pterygoid) is a muscle of mastication with two heads.

Origin and insertion

The upper/superior head originates on the infratemporal surface and infratemporal crest of the greater wing of the sphenoid bone, and the lower/inferior
..... Click the link for more information.

The medial pterygoid (or internal pterygoid muscle), is a thick, quadrilateral muscle of mastication.

The mandibular branch of the fifth cranial nerve, the trigeminal nerve, innervates the medial pterygoid muscle.
..... Click the link for more information.

The mandibular nerve (V₃) is the largest of the three branches of the trigeminal nerve.

Structure

Roots

It is made up of two roots:

• a large sensory root proceeding from the inferior angle of the trigeminal ganglion.

..... Click the link for more information.