How the Body Works : Chewing and Biting

Chewing and Biting

Chewing and biting actions are largely controlled by the movement of five muscles on either side of the head. Contraction of the buccinators compresses the cheeks. these muscles, together with the tongue, are used to position food in the mouth. The internal pterygoids are responsible for the side-to-side grinding movement of the jaws, while external pterygoids open the mouth and allow the jaw to protrude, creating back and forth grinding movements. The masseter muscles, stretching from the cheekbones to the base of the lower jaw, are responsible for raising and for lowering the jaw and are particularly important in biting. Contractions of the temporalis muscles, situated at the sides of the head, clench the teeth. They work in conjunction with the masseter muscles to coordinate the biting of food.

Category:

Howto & Style

Tags:

• Chewing
• and
• Biting

[themakersofbutter]

Cool didn't know

[dillemabeans]

THANK YOU T-T If youtube had more of these videos there would be better med students in the world

[gembil]

thank you soooo much! :)

i've searching all over the planet for this video :p

can i use this for my peer presentation? :) i'll mention the source..

[gideonwfc]

how do u improve

[gideonwfc]

how do u make the maassiter muscle bigger

[547212436]

thanks a lot. It really helps me to understand the group of muscles invovled with tmj. However, as english is my second lauguage, I'd appreciate to see the names of each muscle groups in writings too

[tonyballa07]

good narraration is that you?