Muscles of Face

And

Scalp

Dr. Sama ul Haque

Objectives

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.

Scalp

Scalp consists of skin and subcutaneous tissue which cover the skull.

The scalp consists of 5 layers of tissue:The scalp consists of 5 layers of tissue:1. S = Skin1. S = Skin

2. C = Connective Tissue2. C = Connective Tissue

3. A = Aponeurosis3. A = Aponeurosis

4. L = Loose connective tissue4. L = Loose connective tissue

5. P = Pericranium5. P = Pericranium

Layers of Scalp

Muscle of scalp

Muscles of the ScalpMuscles of the ScalpOccipito-frontalisOccipito-frontalis

Muscles of the ScalpMuscles of the ScalpOccipito-frontalisOccipito-frontalis

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.

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).

Muscles of facial expressionMuscles of facial expression

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).

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).

Muscle of Facial Expression

Muscle of Facial Expression

Muscles of the Forehead:Frontalis

Muscles of the Mouth, Lips and Cheeks:

Orbicularis orisLevator labii superioris alaeque nasiMentalisBuccinatorDepressor anguli oris

Muscles of the Mouth, Lips and Cheeks:

Levator anguli orisZygomaticus majorZygomaticus minorLevator labii superiorisDepressor labii inferiorisRisorius

Platysma (in the neck but extends to the face)

Muscles around the Orbital opening:

Orbicularis oculi

Muscles around the Nose:

NasalisProcerusDepressor septi

Ear Muscles

Nose Muscles

Nose Muscles

Mouth

BuccinatorBuccinatorBuccinatorBuccinator

BuccinatorBuccinatorBuccinatorBuccinator

Motor to Face CN VII

Thank you