Muscles and bones Flashcards
Where is the orbicularis occuli?
Circular around each eye for squinting
Where is the orbicularis orris?
Circular around the lips- for pouting
Where is the Buccinator?
In the cheek from the lip corner to external oblique ridge- keeps food between teeth when chewing
Where is the zygomaticus and Risoris?
Both together from the lip corner to zygomatic arch- for smiling or elevating lips
Where is the depressor angularis?
From lip corner downwards- to depress lips
Where does the temporalis originate from?
Temporal bone
Where does the temporalis attach to?
The Coronoid
What movement of the jaw does the temporalis do?
Closes (elevates)
Where does the masseter originate from?
The zygomatic arch
Where does the masseter attach to?
Outer angle
What jaw movement does the masseter do?
Closes
Where does the medial pterygoid originate from?
The medial pterygoid plate
Where does the medial pterygoid attach to?
Inner angle
What jaw movement does the medial pterygoid do?
Closes and swings
Where does the lateral pterygoid originate from?
Lateral pterygoid plate
