dentary

/den-tuh-ree/US // ˈdɛn tə ri //

齿科,牙科,牙科医生,齿科医生

Definitions

n.名词 noun

1
plural den·ta·ries.Zoology.
- : one of a pair of membrane bones that in lower vertebrates form the distal part of the lower jaws and in mammals comprise the mandible.

The dentary is an unornamented bone with the anterior half curving medially; the greatest height is anterior.
The dentary meets the splenial dorsally in a straight suture.
The splenial also curves medially, and as stated, meets the dentary in a straight suture.
Membrane bones are freely developed in connection with the mandible, dentary, splenial, and angular bones being all present.
It extends back as far as the posterior end of the jaw and forwards for some distance dorsal to the dentary and splenial.