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Muscles of the head
Muscles of the head for speech pathology
27
Anatomy
Post-Graduate
03/07/2012

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Cards

Term
Frontalis
Definition

 

ORIGIN
Occipital : highest nuchal line and mastoid process. Frontal: superior fibers of upper facial muscles
[image]
INSERTION
Galeal aponeurosis
ACTION
Wrinkles forehead and fixes galeal aponeurosis
NERVE
Posterior auricular and temporal branches of facial (VII)

 

Term
Procerus
Definition
ORIGIN
Nasal bone and cartilages
[image]
INSERTION
Skin of medial forehead
ACTION
Wrinkles and 'frowns' forehead
NERVE
Temporal branch of facial nerve (VII)
Term
Nasalis
Definition

 

ORIGIN
Frontal process of maxilla
[image]
INSERTION
Nasal aponeurosis
ACTION
Opens and closes nostrils , particularly in forced respiration
NERVE
Part of dilateralor nasalis is depressor septi from maxilla above central incisor to immobile part of nasal septum
Term
Orbicularis Oculi Orbital
Definition

 

ORIGIN
Medial orbital margin and lacrimal sac (orbital, palpebral and lacrimal parts)
[image]
INSERTION
Lateral palpebral raphe
ACTION
Closes eyelids, aids passage and drainage of tears
NERVE
Temporal and zygomatic branches of facial nerve (VII)
Term
Levator Labii Superioris
Definition

 

ORIGIN
Medial infra-orbital margin
[image]
INSERTION
Skin and muscle of upper lip
ACTION
Elevates and everts upper lip
NERVE
Buccal branch of facial nerve (VII)
Term
Zygomaticus Minor
Definition

 

ORIGIN
Lateral infra-orbital margin
[image]
INSERTION
Skin and muscle of upper lip
ACTION
Elevates and everts upper lip
NERVE
Buccal branch of facial nerve (VII)
Term
Zygomaticus Major
Definition

 

ORIGIN
Anterior surface of zygomatic bone
[image]
INSERTION
Modiolus at angle of mouth
ACTION
Elevates and draws angle of mouth laterally
NERVE
Buccal branch of facial nerve (VII)
Term
Levator Anguli Oris
Definition


ORIGIN
Anterior surface of maxilla below infraorbital foramen
[image]
INSERTION
Outer end of upper lip and modiolus
ACTION
Elevates angle of mouth
NERVE
Buccal branch of facial nerve (VII)
Term
Parotid Duct
Definition
Term
Buccal Fat Pad
Definition
Term
Buccinator
Definition

 

ORIGIN
External alveolar margins of maxilla and mandible by molar teeth, to maxillary tubercle and pterygoid hamulus and posterior mylohyoid line respectively, then via pterygomandibular raphe between bones
[image]
INSERTION
Decussates at modiolus of mouth and interdigitates with opposite side
ACTION
Aids mastication, tenses cheeks in blowing and whistling, aids closure of mouth
NERVE
Buccal branch of facial nerve (VII)
Term
Masseter
Definition
ORIGIN
Anterior two thirds of zygomatic arch and zygomatic process of maxilla
[image]
INSERTION
Lateral surface of angle and lower ramus of mandible
ACTION
Elevates mandible (enables forced closure of mouth)
NERVE
Anterior division of mandibular nerve (V)
Term
Orbicularis Oris
Definition
ORIGIN
Near midline on anterior surface of maxilla and mandible and modiolus at angle of mouth
[image]
INSERTION
Mucous membrane of margin of lips and raphe with buccinator at modiolus
ACTION
Narrows orifice of mouth, purses lips and puckers lip edges
NERVE
Accessory parts are incisivus labii superioris and inferioris
Term
Depressor Anguli Oris
Definition
ORIGIN
Outer surface of mandible posterior to oblique line
[image]
INSERTION
Modiolus at angle of mouth
ACTION
Depresses and draws angle of mouth laterally
NERVE
Mandibular branch of facial nerve (VII)
Term
Depressor Labii Inferioris
Definition

DEPRESSOR LABII INFERIORIS

ORIGIN
Outer surface of mandible along oblique line
[image]
INSERTION
Skin of lower lip
ACTION
Depresses and draws lower lip laterally
NERVE
Mandibular branch of facial nerve (VII)
Term
Sternocleidomastoid
Definition
ORIGIN
Anterior and superior manubrium and superior medial third of clavicle
[image]
INSERTION
Lateral aspect of mastoid process and anterior half of superior nuchal line
ACTION
Flexes and laterally rotates cervical spine. Protracts head when acting together . Extends neck when neck already partially extended
NERVE
Spinal accessory nerve (lateral roots C1-5)
Term
Mentalis
Definition
ORIGIN
Incisive fossa on anterior aspect of mandible
[image]
INSERTION
Skin of chin
ACTION
Elevates and wrinkles skin of chin and protrudes lower lip
NERVE
Mandibular branch of facial nerve (VII)
Term
Risorius
Definition
ORIGIN
Deep fascia of face and parotid
[image]
INSERTION
Modiolus and skin at angle of mouth
ACTION
Retracts angle of mouth
NERVE
Buccal branch of facial nerve (VII)
Term
Platysma
Definition
ORIGIN
Skin over lower neck and upper lateral chest
[image]
INSERTION
Inferior border of mandible and skin over lower face and angle of mouth
ACTION
Depresses and wrinkles skin of lower face and mouth. Aids forced depression of mandible
NERVE
Cervical branch of facial nerve (VII)
Term
Levator Scapulae
Definition

LEVATOR SCAPULAE

ORIGIN
Posterior tubercles of transverse processes of C1-4
[image]
INSERTION
Upper part of medial border of scapula
ACTION
Raises medial border of scapula
NERVE
Anterior primary rami of C3 and C4 and dorsal scapular nerve (C5)
Term
Trapezius
Definition

[image]

TRAPEZIUS

ORIGIN
Medial third superior nuchal line, ligament nuchae, spinous processes and supraspinous ligaments to T12
[image]
INSERTION
Upper fibers to lateral third of posterior border of clavicle; lower to medial acromion and superior lip of spine of scapula to deltoid tubercle
ACTION
laterally rotates, elevates and retracts scapula. If scapula is fixed, extends and laterally flexes neck
NERVE
Spinal accessory nerve (C1-5)(spinal nerves C3 and C4 for proprioception)
Term
Splenius Capitis
Definition
ORIGIN
Lower ligament nuchae, spinous processes and supraspinous ligaments T1-3
[image]
INSERTION
Lateral occiput between superior and inferior nuchal lines
ACTION
Extends and rotates cervical spine
NERVE
Posterior primary rami of C3, 4
Term
Sternocleidomastoid
Definition
ORIGIN
Anterior and superior manubrium and superior medial third of clavicle
[image]
INSERTION
Lateral aspect of mastoid process and anterior half of superior nuchal line
ACTION
Flexes and laterally rotates cervical spine. Protracts head when acting together . Extends neck when neck already partially extended
NERVE
Spinal accessory nerve (lateral roots C1-5)
Term
Temporalis
Definition
ORIGIN
Temporal fossa between inferior temporal line and infratemporal crest
[image]
INSERTION
Medial and anterior aspect of coronoid process of mandible
ACTION
Elevates mandible and posterior fibers retract
NERVE
Deep temporal branches from anterior division of mandibular nerve (V)
Term
Occipitalis
Definition
O: I: A:
Term
Posterior Auricular
Definition
ORIGIN
Cartilage of auricle
[image]
INSERTION
Galeal aponeurosis
ACTION
Adjusts position of ear
NERVE
Temporal branch of facial nerve (VII)
Term
Semispinalis Capitis
Definition
O:
I:
A:
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