Download Muscles of Arm Head, Face and Neck

Muscles of Arm Head, Face and Neck
Muscles of Head and Neck
MUSCLES OF THE SCALP
• Frontalis – also called occipitofrontalis or
epicranius which has two heads.
• Occipitalis
http://www.fullfrontalanatomy.com/Pag
es/F13/MUSCLES.htm
Muscles of head and face
Frontalis
O: galea aponeurotica
I: eyebrows
F: raise eyebrows, pull
scalp anteriorly
N: Facial Nerve
A: Raises eyebrow
The occipitalis
The occipitalis is
connected to the frontalis
by the galea
aponeurotica
MUSCLES OF THE FACE
Levator palpebrae superioris
Latin Musculus corrugator supercilii
Gray'sp.381
OriginSuperciliary arches
InsertionForehead skin, near eyebrow
ArteryOphthalmic artery
NerveFacial nerve
ActionsWrinkles forehead
Orbicularis oculi
O: frontal, maxillary bones
I: eyelids
F: close eyes
N: Zygomatic branches of the
Facial nerve
A: closes eyelid
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
RISORIUS
Origin parotid fascia
Insertion modiolus
Artery facial artery
Nerve Buccal branch of the facial
nerve
Actions draw back angle of mouth
SMILE!
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
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
Depressor anguli oris
Latin Musculus depressor anguli oris
OriginTubercle of mandibleInsertionMod
iolus of mouth
ArteryFacial artery
NerveMandibular branch of facial nerve
ActionsDepresses angle of mouth
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
MENTALIS
Origin anterior mandible
Insertion chin
ArteryNerve mandibular branch of facial
nerve
Actions elevates and wrinkles skin of chin,
protrudes lower lip
Glossus group
Muscles of the Anterior Neck and Throat – Swallowing
Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings
Figure 11.10a
Muscles promoting Tongue movement (extrinsic muscles)
Muscle
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 Inferolateral tongue Depress tongue and
Hypoglossal n. (CN
hyoid
XII)
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
Hypoglossal n. (CN
XII)
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
Masseter
O: zygomatic arch
I: angle of mandible
F: elevate mandible
N: masseteric nerve III
A: Closes mouth and
Retracts mandible
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
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).
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
http://youtu.be/x5b7BUMy_8k muscles of the neck
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