Locomotion and Movement Question 33

33. The lower jaw in mammals is made up of

(a) Mandible

(b) Dentary

(c) Maxilla

(d) Angulars

Show Answer

Answer : a

Hints & Solutions

(a) Lower jaw is made of mandible or jaw bone. The mandible is the largest bone in the human skull. It holds the lower teeth in place; it assists in mastication and forms the lower jawline. The mandible is composed of the body and the ramus and is located inferior to the maxilla. The body is a horizontally curved portion that creates the lower jawline.



NCERT Chapter Video Solution

Dual Pane