HFS & TN Clinic

Name		Origin	End	Nerve Responsible for Control	Function
Cranial Surface	Frontalis	galea aponeurotica	Skin of the front region	Facial nerve	Create wrinkles on forehead and raises the eyebrows.
	Occipitalis	occipital bone	galea aponeurotica		Makes wrinkles in the scalp.
Orbicularis oculi		frontal bone, maxilla, zygomatic bone: medial canthal ligament	Skin of the orbit		Closes the eyelids.
Corrugator supercilii		frontal bone: medial region of superior orbital rim	The eyebrow’s medial 1/2 skin		Lowers the eyebrow and makes wrinkles on the forehead.
Procerus		Lower region of nasal bone	Skin between eyebrows		Lowers the eyebrows and makes wrinkles on the nose.
Orbicularis oris		Skin of lips	Skin around the mouth		Closes the mouth and purses the lips.
Zygomaticus		Zygomatic arch	Angle of mouth, Outer part of superior lip		Pulls the angle of mouth to the posterior superior.
Levator labii superioris		Frontal process of the maxilla, zygomatic bone	Inner part of superior lip		Raises the superior lip and gives negative expression.
Levator anguli oris		Frontal inferior region of maxilla	Angle of mouth		Raises the angle of mouth.
Risorius		Fascia of the masseter muscle and the platysma muscle			Pulls the angle of mouth outward.
Depressor anguli oris		Inferior border of mandible			Lowers the angle of mouth.
Depressor labii inferioris		Foretooth of mandible	Skin of lower lip		Lowers the mandible.
Mentalis		Foretooth of mandible	Skin of jaw		Either pulls up or projects out the lower lip.
Buccinator		Alveolar process of the maxilla and the mandible	Orbicularis oris muscle		Pressurizes the cheeks and lets out air.