Hey guys,
"Section B" of exam "Osteo-Myology of the Head & Neck" trial exam, question 2 seems to have got me confused. As far as i know, there are only 4 masticatory muscles, and 8 facial expression.
Which 2 other muscles are INVOLVED in the masticatory process?
(Fairly sure, in question one, i've already used all 4 masticatory muscles, so i cannot use them again)
-I'm thinking obicularis oris? keeps the lips pursed so that food does not fall out..
-Buccinator? - Helps pull the mouth laterally..
Thanks.
6 comments:
I am stuck with you on this one!! I have no idea what the other two are as I only know the four muscles of mastication, the others I am pretty sure are for facial expression only!! However, I may be wrong! Sorry, i could not help steven! xoxo b.
I said the obicularis oris and the buccinator coz as you said the obicularis oris is involved in keep the food in the mouth etc and the buccinator is involved in chewing. :D
haha, i also realised there ARE people who chew with their mouth's open..
I said buccinator (cos it aids in mastication but not a mastication muscle) & orbicularis oris (closes mouth for chewing & swallowing
Have you considered the fact that the other two muscles may be considered as accessory masticatory muscles?
Yeah, that's what I was thinking Sophie! :)
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