MuscleTables
1
MuscleTables
Table1-4
MUSCLE
PROXIMAL
ATTACHMENT
(ORIGIN)
DISTAL
ATTACHMENT
(INSERTION)
INNERVATION
MAIN ACTIONS
BLOOD SUPPLY
MUSCLE
GROUP
Nasalis
Canine eminence above
and lateral to
incisive fossa of
maxilla
Aponeurosis on
nasal
cartilages
Zygomatic and
buccal
branches of
facial nerve
Draws ala of nose
toward septum,
compresses
nostrils; alar part
opens nostrils
Superior labial, septal,
and lateral nasal
branches of facial
artery
Facial expression
Occipital belly
(occipitalis) of
epicranius
Lateral 2/3 of superior
nuchal line and
mastoid process
Skin of occipital
region,
epicranial
aponeurosis
Posterior auricular
branches of
facial nerve
Moves scalp
backward
Occipital branch of
posterior auricular
artery, descending
branch of occipital
artery
Facial expression
Omohyoid
Inferior belly:
from upper
border of scapula
and suprascapular
ligament, ending in
tendon under
sternocleidomastoid
muscle
Superior belly:
from this
tendon
Inferior belly:
to
intermediate
tendon
Superior belly:
to
body of hyoid
bone
Ansa cervicalis
Steadies hyoid bone
and depresses
hyoid
Hyoid branch of lingual
artery,
sternocleidomastoid
branch of superior
thyroid artery
Infrahyoid
Orbicularis oculi
Medial orbital margin,
palpebral ligament,
lacrimal bone
Skin around orbit,
palpebral
ligament,
upper and
lower eyelids
Facial nerve (CN
VII)
Closes eyelids
Facial and superficial
temporal arteries
Facial expression
Orbicularis oris
Maxilla above incisor
teeth
Skin around lips
Zygomatic,
buccal, and
mandibular
branches of
facial nerve
Compression,
contraction, and
protrusion of lips
Inferior and superior
labial branches of
facial artery
Facial expression
Palatoglossus
Palatine aponeurosis of
soft palate
Lateral aspect of
tongue
Vagus nerve via
pharyngeal
plexus
Elevates posterior
tongue,
depresses palate
Ascending pharyngeal
arteries, palatine
branches of facial
and maxillary
arteries
Palatal
Palatopharyngeus
Hard palate, superior
palatine
aponeurosis
Lateral pharyngeal
wall
Vagus nerve via
pharyngeal
plexus
Tenses soft palate;
pulls walls of
pharynx
superiorly,
anteriorly, and
medially during
swallowing
Ascending palatine
artery branch of
facial artery,
descending palatine
artery branch of
maxillary artery
Longitudinal
pharyngeal
Platysma
Skin below clavicle,
upper thorax
Mandible, oral
muscles
Facial nerve
Tenses skin of neck
Submental and
suprascapular
arteries
Facial expression
Posterior crico-
arytenoid
Posterior surface of
lamina of cricoid
cartilage
Muscular process
of arytenoid
cartilage
Recurrent
laryngeal
nerve
Abducts vocal folds
Superior and inferior
thyroid arteries
Laryngeal
Procerus
Fascia covering lower
parts of nasal bone
and upper part of
lateral nasal
cartilage
Skin between and
above
eyebrow
Temporal and
zygomatic
branches of
facial nerve
Draws down medial
angle of
eyebrows,
produces
transverse
wrinkles over
bridge of nose
Angular and lateral nasal
branches of facial
artery
Facial expression
Rectus capitis
anterior
Lateral mass of atlas
Base of occipital
bone in front
of foramen
magnum
Ventral rami of
cervical
nerves
(C1–C2)
Flexes head
Muscular branches of
vertebral artery,
ascending
pharyngeal artery
Prevertebral
Rectus capitis
lateralis
Upper surface of
transverse process
of atlas
Inferior surface of
jugular
process of
occipital bone
Ventral rami of
cervical
nerves
(C1–C2)
Flexes head laterally
to same side
Muscular branches of
vertebral artery,
occipital artery,
ascending
pharyngeal artery
Prevertebral
Risorius
Fascia over masseter
superficial to
platysma
Skin at angle of
mouth
Zygomatic and
buccal
branches of
facial nerve
Retracts angle of
mouth
Superior labial branch of
facial artery
Facial expression
Salpingopharyngeus
Pharyngotympanic
(auditory,
eustachian) tube
Side of
pharyngeal
wall
Vagus nerve via
pharyngeal
plexus
Elevates pharynx and
larynx during
swallowing and
speaking
Pharyngeal branch of
ascending
pharyngeal artery
Longitudinal
pharyngeal
