The deep temporal nerves,
branches of the mandibular division
of the trigeminal nerve
, are two in number, anterior and posterior. They pass above the upper border of the pterygoideus externus
and enter the deep surface of the temporalis
- The posterior branch, of small size, is placed at the back of the temporal fossa, and sometimes arises in common with the masseteric nerve.
- The anterior branch is frequently given off from the buccinator nerve, and then turns upward over the upper head of the pterygoideus externus.
- Frequently a third or intermediate branch is present.