1. Muscles of Arm Head, Face and Neck
Muscles of Head and Neck

2. MUSCLES OF THE SCALP
Frontalis – also called occipitofrontalis or epicranius which has two heads.
Occipitalis

3.
Muscles of head and face

4. Frontalis O: galea aponeurotica I: eyebrows F: raise eyebrows, pull
scalp anteriorly
N: Facial Nerve
A: Raises eyebrow

5. The occipitalis
The occipitalis is connected to the frontalis by the galea aponeurotica

9. MUSCLES OF THE FACE

10. Levator palpebrae superioris

11. Latin Musculus corrugator supercilii
Gray'sp.381
OriginSuperciliary arches
InsertionForehead skin, near eyebrow
ArteryOphthalmic artery
NerveFacial nerve
ActionsWrinkles forehead

12. O: frontal, maxillary bones I: eyelids
Orbicularis oculi
O: frontal, maxillary bones
I: eyelids
F: close eyes
N: Zygomatic branches of the
Facial nerve
A: closes eyelid

13. Zygomaticus Major & Minor
Origin anterior of zygomatic
Insertion   modiolus of mouth
Nerve buccal branch of facial nerve
Action draws angle of mouth
upward and laterally
Zygomaticus Major & Minor

14. RISORIUS Origin parotid fascia Insertion modiolus Artery facial artery
Nerve Buccal branch of the facial nerve
Actions draw back angle of mouth SMILE!

15. Levator labii superioris
Latin musculus levator labii superioris
OriginMedial infra-orbital margin
InsertionSkin and muscle of the upper lip(labii superioris)
Arteryfacial artery
Nervezygomatic branch of the facial nerve(C.N. VII)ActionsElevates the upper lip

16. Depressor labii inferioris
Latin musculus depressor labii inferioris
Originoblique line of the mandible, between the symphysis and themental foramen
Insertionintegument of the lower lip,Orbicularis oris fibers, its fellow of the opposite side
Nervefacial nerve - Mandibular branch
ActionsDepression of the lower lips

17. Depressor anguli oris Latin Musculus depressor anguli oris
OriginTubercle of mandibleInsertionModiolus of mouth
ArteryFacial artery
NerveMandibular branch of facial nerve
ActionsDepresses angle of mouth

18. O: muscles around mouth I: lips
Orbicularis oris
O: muscles around mouth
I: lips
F: close, purse lips
N: cranial nerve VII, buccal
branch of the facial nerve
A: pucker the lips

19. MENTALIS Origin anterior mandible Insertion chin
ArteryNerve mandibular branch of facial nerve
Actions elevates and wrinkles skin of chin, protrudes lower lip

20. Glossus group

21. Muscles of the Anterior Neck and Throat – Swallowing
Figure 11.10a
Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings

22. Muscles promoting Tongue movement (extrinsic muscles)
ATTACHMENT
MUSCLE ACTION
Muscle
Origin
Insertion F
Nerve Supply
Genioglossus
Internal surface mandible
Inferior tongue & hyoid bone body
Protract tongue
Hypoglossal n. (CN XII)
Hyoglossus
Body & greater horn of hyoid
Inferolateral tongue
Depress tongue and draws its sides downward
Styloglossus
Styloid process temporal bone
Lateroinferior tongue
Retracts (& elevates) tongue
Fortunately, all you have to know is that they all insert on the tongue and perform all movements of the tongue!
X- arm (humerus) movement Y- shoulder movement
Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings

28. Origin subcutaneous tissue of infraclavicular and supraclavicular regions
Insertion   base of mandible; skin of cheek and lower lip; angle of mouth; orbicularis oris
Artery branches of the Submental artery and Suprascapular artery
Nerve cervical branch of the facial nerve (CN VII)
ActionsDraws the corners of the mouth inferiorly and widens it (as in expressions of sadness and fright). Also draws the skin of the neck superiorly when teeth are clenched
platysma

29. Masseter O: zygomatic arch I: angle of mandible F: elevate mandible
N: masseteric nerve III
A: Closes mouth and
Retracts mandible

30. Temporalis Origin temporal lines on the parietal bone of the skull.
Insertion   coronoid process
of the mandible.
Artery deep temporal
Nerve third branch (mandibular nerve)
of the trigeminal nerve
Action elevation and retraction
of mandibleAntagonistPlatysma muscle
Temporalis

31. BUCCINATOR
Origin from the alveolar processes of the maxillary bone and mandible, pterygomandibular raphe
Insertion   in the fibres of the orbicularis oris
Arterybuccal artery
Nervebuccal branch of the facial nerve (VII cranial nerve)
ActionsThe buccinator compresses the cheeks against the teeth and is used in acts such as blowing. It is an assistant muscle of mastication (chewing).

32. Sternocleidomastoid Originmanubrium sterni,
Insertion   mastoid process of the temporal bone,
superior nuchal line
Artery occipital artery and the superior thyroid artery
Nerve motor: accessory nerve sensory: cervical plexus
Action Acting alone, tilts head to its own side
and rotates it so the face is turned towards the
opposite side. Acting together, flexes the neck,
raises the sternum and assists in forced inspiration.
Sternocleidomastoid
muscles of the neck

33. scalenes Origin cervical vertebrae (CII-CVII)
Insertion   first and second ribs
Artery Ascending cervical artery (branch of Inferior thyroid artery)
Nerve cervical nerves (C3-C8)
Actions elevation of ribs I&II
scalenes