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Axial Muscle Lists
USC DPT12 Fall - 09
26
Anatomy
Graduate
12/04/2009

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Cards

Term
Rectus Abdominis
Definition
P:Ribs 5-7 and xiphoid process
D:Pubic ramus
A:Flexion
N:intercostal nerves T7-T12
Term
External Oblique
Definition
P: ribs 5-12
D: iliac crest & linea alba
A: flexion, ipsi sidebend, contra rot
N: intercostal nerves T7-T12
Term
Internal Oblique
Definition
P: iliac crest & thoracolumbar fascia
D: linea alba & inferior ribs
A: flexion, ipsi sidebind, ipsi rot
N: intercostal n. T7-T12
Term
Transverse Abdominus
Definition
P: lower 6 ribs, thoracolumbar fascia & iliac crest
D: linea alba
A: none (increase interabdominal pressure)
N: intercostal n. T7-12
Term
Platysma
Definition
P: superficial fascia of deltoid and pectoral regions
D: inferior border of mandible
A: stretches tight the skin of the neck, flexion
N: facial n.
Term
Sternocleidomastoid
Definition
P: manubrium and medial 1/3 of clavicle
D: mastoid process and superior nuchal line
A: flexion, ipsi sidebend, contra rot
N: Spinal Accessory C1-3
Term
Scalenus Posterior
Definition
P: Transverse processes of C5&C6
D: 2nd rib
A: ipsi sidebend, contra rot
N: Cranial nerves 3-8
Term
Scalenus Medius
Definition
P: Transverse processes of C2-C7
D: 1st rib
A: ipsi sidebend, contra rot
N: Cervical n. 3-8
Term
Scalenus Anterior
Definition
P: transverse process of C3-C6
D: 1st rib
A: flexion, ipsi sidebend, contra rot
N: cervical n. 3-8
Term
Rectus Capitus Posterior Major
Definition
P: spinous process of axis
D: inferior nuchal line
A: extension, ipsi rot
N: C1 dorsal ramus
Term
Rectus Capitus Posterior Minor
Definition
P: posterior arch of the atlas
D: inferior nuchal line
A: extension, ipsi rot
N: C1 dorsal ramus
Term
Obliquus Capitus Superior
Definition
P: transverse process of the atlas
D: occipital bone
A: extension, ipsi sidebend
N: suboccipital n. C1
Term
Obliquus Capitus Inferior
Definition
P: spinous process of axis
D: transverse process of atlas
A: ipsi rot
N: suboccipital n. C1
Term
Sternohyoid
Definition
P: Hyoid bone
D: Manubrium
A: depress hyoid
N: C1-3
Term
Sternothyroid
Definition
P: Thyroid cartilage
D: Manubrium
A: Depress hyoid & larynx
N: C2-3
Term
Thyrohyoid
Definition
P: Hyoid bone
D: Thyroid Cartilage
A: depress hyoid & elevates larynx
N: C1
Term
Omohyoid
Definition
P: Hyoid bone
D: Superior Border Scapula
A: depresses and retracts hyoid
Term
Frontalis
Definition
P: epicranial aponeurosis
D: skin of eyebrow and forehead
A: raises eyebrows
N: Facial N. 7
Term
Orbicularis Oculi
Definition
P: medial orbit (frontal and maxillary bones)
D: skin around orbit
A: closes eyelids
N: Facial n. 7
Term
Orbicularis Oris
Definition
P: complicated, muscle fibers from several facial muscles
D: skin and mucous membrane of lips
A: closes lips
N: facial n. 7
Term
Buccinator
Definition
P: posterior maxilla and mandible
D: complicated: fibers blend w/ orbicularis oris
A: compresses cheack
N: facial n. 7
Term
Zygomaticus
Definition
P: zygomatic bone
D: angle of mouth
A: pulls angle superiorly (smile)
N: facial n. 7
Term
Temporalis
Definition
P: temporal fossa
D: coronoid process of mandible
A: elevates, retrudes mandible
N: trigeminal
Term
Masseter
Definition
P: zygomatic arch
D: angle & ramus of mandible
A: elevates, protrudes mandible
N: trigeminal n.
Term
Medial Pterygoid
Definition
P: Lat. pterygoid plate & maxilla
D: angle & ramus of mandible
A: elevates, protrudes mandible
N: trigeminal n.
Term
Lateral Pterygoid
Definition
P: lat. pterygoid plate & greater wing of sphenoid
D: neck of mandible & articular disk
A: depress, protrudes mandible
N: trigeminal n.
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