2. • Explain the muscle of scalp with their origin, insertion, nerve
supply and action.
• Identify the muscles of facial expressions with their nerve supply
and discuss their actions.
• Discuss facial nerve palsy.
3. • Scalp consists of skin and subcutaneous
tissue which cover the skull.
• The scalp consists of 5 layers of tissue:
1. S = Skin
2. C = Connective Tissue
3. A = Aponeurosis
4. L = Loose connective tissue
5. P = Pericranium
8. 1. The facial muscles or muscles of facial
expression are subcutaneous.
2. Most muscles attach to the bone or fascia
and produce their effect by pulling the
Skin.
9. 3. They move the skin and change facial
expressions to convey mood.
4. The basic shape of the face is determined
by the underlying bones.
5. All muscles of the facial expression are
supplied by the VII cranial nerve (Facial
nerve).
10. • Present in the superficial fascia of the face.
• Inserted into the skin of the face.
• Related to the three main orifices of the face
(either sphincters or dilator).
13. Muscles of the Forehead:
Frontalis
Muscles of the Mouth, Lips and Cheeks:
Orbicularis oris
Levator labii superioris alaeque nasi
Mentalis
Buccinator
Depressor anguli oris
14. Muscles of the Mouth, Lips and Cheeks:
Levator anguli oris
Zygomaticus major
Zygomaticus minor
Levator labii superioris
Depressor labii inferioris
Risorius
Platysma (in the neck but extends to the face)
15. Muscles around the Orbital opening:
Orbicularis oculi
Muscles around the Nose:
Nasalis
Procerus
Depressor septi
