Jaw
The jaw was the skeletal structure around the mouth. Several species had teeth in their jaw. The extension of the jaw was called the cheek while the area where the two jaws came together was called chin. Lifeforms with extremely powerful jaws include Velociraptors and Alligators.

Relaxing the jaw was part of the surah'tahn and the Khavorta posture, Vulcan neuro-pressure techniques. ()

While stranded in the 19th century Earth, Data received an advise from a beggar, "Stockbrokers are cheap as hell. Don't even bother to ask. Your best handout is from a young fella with his lady. You give him a chance to show her he's generous. Steer clear of sailors. Most likely you'll get a fist across the jaw for your trouble." ()

The  of Finnegan hit James T. Kirk at his jaw. ()

Commander William T. Riker once called the jaws of the Ferengi "iron jaws". ()

Commander Calvin Hutchinson identified Commander Riker and told him about his unique characteristics, "flashing blue eyes, square jaw. Quite the ladies man." ()

In 2373, B'Elanna Torres gave Ensign Vorik a dislocated jaw when he was suffering from the effects of pon farr. ()

In 2374, The Doctor diagnosed a Romulan officer with third-degree burns, a hairline fracture of the jaw, and a ruptured blood vessel in his brain which required surgical intervention. ()

The termination implant attached to the brain stem of Vorta operatives by the Dominion was triggered by hand with a gesture that applied pressure with the index finger behind the right earlobe and the thumb under the jaw. ()

In 2377,  fused Neelix's jaw and removed his vocal cords because he thought he talked too much. Q eventually repaired the damage done by his son. ()

Shinzon told Captain Jean-Luc Picard about his torture in his youth. The Romulans broke his nose and his jaw. ()

See also 
 "Glass jaw"
 Premaxilla

External link 
 
Anatomy