Facial Muscles Flashcards
The position of the occipitofrontalis
The occipitals and frontalis are collectively known as this muscle. Its action is to lift the eyebrows and wrinkle the skin of forehead. Creates looks of surprise and horror
The action of the occipitalis
Moves scalp backwards
The position of the frontalis
Fibrous sheet over the frontal and parietal bones
The action of the procerus
Wrinkles at bridge of nose creates a disgusted expression
The position of the nasalis
Sides of the nose
The action of the levator labii superioris
Lifts upper lip, producing a cheerful expression
The position of the levator anguli oris
Thin band of muscle below levator labii superioris
The action of the zygomaticus
Moves angle of the mouth up, back and out producing smiling
The position of the orbicularis oris
Sphincter muscle around the mouth
The action of the mentalis
Lifts skin on chin and turns the lower lip outwards
The position of the depressor labii inferioris
Mid-line of chin to lower lip
The action of the buccinator
Compresses cheek against the teeth to maintain tension, aids in mastication
The position of the risorius
Between masseter and corner of the mouth
The action of the medial pterygoid
Raises the mandible
The position of the lateral pterygoid
Behind zygomatic arch
