Question

Lower jaw is composed of ............. in rabbit.

• A. Dentary
• B. Maxilla
• C. Premaxilla
• D. Palatine

Answer 1

The correct option is A Dentary

Teeth are ecto-mesodermal in origin. Major portion of teeth arises from Dermis. Part of tooth present outside the gums only is derived from ectoderm or Epidermis (Enamel part). In human teeth of upper jaw are attached to the Maxilla bone. While teeth of lower jaw are attached to mandible jaw. But in rabbit upper incisors are attached to premaxilla. While upper premolars and molars attached to the maxilla bone. While lower teeth are attached to dentary bone. Dentary comprises of the lower jaw.