1. Tardigrade
  2. Question
  3. Biology
  4. Lower jaw of mammals made up of

Question Error Report

Thank you for reporting, we will resolve it shortly

Back to Question

Q. Lower jaw of mammals made up of

VMMC MedicalVMMC Medical 2010

Solution:

Each ramus of lower jaw or mandible in mammals is formed of a single large membrane bone, called as dentary. The dentary is broad and flat behind but narrow and conical in front. The front end bears a single incisor tooth. The lower jaw in frog is toothless and movable up and down. Each ramus of the lower jaw is slender and slightly a curved skeletal rod. It is formed of two membrane bones?the dentary on outer and angulosplenian on inner side.