Facial Muscles

1. FACE
SUBMITTED BY
MANISH KUMAR TAK
KRISHAN KUMAR GOYAL
Guided By - Mandeep Mam
Parveen Sir

2.  THE FACIAL MUSCLE ARE SUBCUTANEOUS
MUSCLES
 FACIAL MUSCLES INSERTED INTO SKIN
 SECONDARY KNOWN AS MUSCLE OF FACIAL
EXPRESSIONS
 THESE HAVE SMALL MOTOR UNIT
 EMBRYOLOGICALLY DEVELOP FROM
MESODERM OF SECOND BRANCHIAL ARCH
 MORPHOLOGICALLY THEY REPRESENT
REMNANTS OF PANNICULUS CARNOSUS

3.  Corrugator
supercilii
Orbicularis oculi
Levator palpebrae
superioris

4.  Procerus
 Compressor
naris
 Dialtor naris
 Depressor septi

5. MUSCLES AROUND MOUTH
Orbicularis oris
 Buccinator
 Levator labii superioris
alaeque nasi
 Zygomatic major
 Zygomaticus minor
 Levator labii superiois
 Levator anguli oris
 Depressor anguli oris
 Depressor labii
inferioris
 Mentalis
 Risorius

6. MUSCLE NAME
•Corrugator Supercilii
•Orbicularis Occuli
• Procerus
•Compressor Naris
•Dilator Naris
•Depressor Septi
•Orbicularis Oris
•Levator Labii Superioris Alaeque Nasi
•Levator Labii Superioris
•Zygomaticus Minor
•Zygomaticus Major
•Levator Anguli Oris
•Risorius
•Buccinator
•Depressor Labii inferioris
•Depressor Anguli Oris
•Mentalis
FUNCTION
oFrowning vertical lines
oclose the eyelids
oFrowning horizontal lines over nasal
bridge
oCompresses the nostrils
oDilate the nostrils
oDepress the nasal septum
oSphincter of the mouth
o-dilates the nostrils
oelevates the upper lip
oelevates the upper lip
oPulls the angle of the mouth
superolaterally
oElevates the angle of mouth
oPull the angle of the mouth laterally
oCompress lips and cheek against teeth
oDepress the lower lip
oDepress the angle of the mouth
oProtrude the lower lip

7. . MOTOR NERVE SUPPLY
FACIAL NERVE IS A MOTOR NERVE
Terminal branches of facial nerve are :-
1. TEMPORAL
2. ZYGOMATIC
3. BUCCAL
4. MARGINAL MANDIBULAR
5. CERVICAL

8. 1. TEMPORAL :- Crosses zygomatic arches
give branches for - FRONATALIS
AURICULAR MUSCLES
ORBICULARIS OCULI
2. ZYGOMATIC :- Crosses zygomatic bone
give branches for –
orbicularis oculi { lower part of eyelid}
3. BUCCAL :- Muscles of cheek and upper lip
4. Marginal mandibular :- Supplies muscles of
lower lip
5. Cervical:- innervates platysma

9. SENSORY NERVE SUPPLY

12. VEINS OF FACE VENOUS DRAINAGE
They communicate the cavernous
sinus
Veins on each side w-shaped
arrangement
The facial vein is largest vein of te
face with no valves
Is formed by the union of the
supratrochelar and supra orbital
veins
It cross the anteroinferior angle of
the masseter ,pierces the deep fascia
,crosses the submandibular gland
,and joins the anterior devision of
retromandibular vein below the angle
of the mandible to form the common
facial vein
Lateral side drain into internal
jugular vein
Communication b/w supraorbital
and superior ophthalmic vein
Pterygoid plexus through deep
facial vein which passes backwards
over the buccinator.

13. Dangerous area of face

14.  The INFRA NUCLEAR LESION of the facial nerve at the
stylomastoid foramen is known as BELL’SPALSY
 UPEER AND LOWER quarters of the face on the same side
get paralysed .
 The face become asymmetricle and is drawn up to the
normal side.
 The affected side motion less.wrinkles disappear from the
forehead
 During mastication food accumulates b/w the teeth and
the cheek
 Tears flow out from the eye .saliva flow down from the
angle of mouth

15. BELL’S PALSY SUPRA NUCLEAR LESION

16. THE supra nuclear lesions of the facial
nerve usually a part of hemiplegia with injury
of corti conuclear fiber.
The lower quarter of the opposite side of
face is paralysed .
Only voluntary movements are affected and
emotional expression remain normal.