Axial Muscle Lists Flashcards

Bones of the head and neck
Terms Definitions
Rectus Abdominis
P:Ribs 5-7 and xiphoid processD:Pubic ramusA:FlexionN:intercostal nerves T7-T12
External Oblique
P: ribs 5-12D: iliac crest & linea albaA: flexion, ipsi sidebend, contra rotN: intercostal nerves T7-T12
Internal Oblique
P: iliac crest & thoracolumbar fasciaD: linea alba & inferior ribsA: flexion, ipsi sidebind, ipsi rotN: intercostal n. T7-T12
Transverse Abdominus
P: lower 6 ribs, thoracolumbar fascia & iliac crestD: linea albaA: none (increase interabdominal pressure)N: intercostal n. T7-12
Platysma
P: superficial fascia of deltoid and pectoral regionsD: inferior border of mandibleA: stretches tight the skin of the neck, flexionN: facial n.
Sternocleidomastoid
P: manubrium and medial 1/3 of clavicleD: mastoid process and superior nuchal lineA: flexion, ipsi sidebend, contra rotN: Spinal Accessory C1-3
Scalenus Posterior
P: Transverse processes of C5&C6D: 2nd ribA: ipsi sidebend, contra rotN: Cranial nerves 3-8
Scalenus Medius
P: Transverse processes of C2-C7D: 1st ribA: ipsi sidebend, contra rotN: Cervical n. 3-8
Scalenus Anterior
P: transverse process of C3-C6D: 1st ribA: flexion, ipsi sidebend, contra rotN: cervical n. 3-8
Rectus Capitus Posterior Major
P: spinous process of axisD: inferior nuchal lineA: extension, ipsi rotN: C1 dorsal ramus
Rectus Capitus Posterior Minor
P: posterior arch of the atlasD: inferior nuchal lineA: extension, ipsi rotN: C1 dorsal ramus
Obliquus Capitus Superior
P: transverse process of the atlasD: occipital boneA: extension, ipsi sidebendN: suboccipital n. C1
Obliquus Capitus Inferior
P: spinous process of axisD: transverse process of atlasA: ipsi rotN: suboccipital n. C1
Sternohyoid
P: Hyoid boneD: ManubriumA: depress hyoidN: C1-3
Sternothyroid
P: Thyroid cartilageD: ManubriumA: Depress hyoid & larynxN: C2-3
Thyrohyoid
P: Hyoid boneD: Thyroid CartilageA: depress hyoid & elevates larynxN: C1
Omohyoid
P: Hyoid boneD: Superior Border ScapulaA: depresses and retracts hyoid
Frontalis
P: epicranial aponeurosisD: skin of eyebrow and foreheadA: raises eyebrowsN: Facial N. 7
Orbicularis Oculi
P: medial orbit (frontal and maxillary bones)D: skin around orbitA: closes eyelidsN: Facial n. 7
Orbicularis Oris
P: complicated, muscle fibers from several facial musclesD: skin and mucous membrane of lipsA: closes lipsN: facial n. 7
Buccinator
P: posterior maxilla and mandibleD: complicated: fibers blend w/ orbicularis orisA: compresses cheackN: facial n. 7
Zygomaticus
P: zygomatic boneD: angle of mouthA: pulls angle superiorly (smile)N: facial n. 7
Temporalis
P: temporal fossaD: coronoid process of mandibleA: elevates, retrudes mandibleN: trigeminal
Masseter
P: zygomatic archD: angle & ramus of mandibleA: elevates, protrudes mandibleN: trigeminal n.
Medial Pterygoid
P: Lat. pterygoid plate & maxillaD: angle & ramus of mandibleA: elevates, protrudes mandibleN: trigeminal n.
Lateral Pterygoid
P: lat. pterygoid plate & greater wing of sphenoidD: neck of mandible & articular diskA: depress, protrudes mandibleN: trigeminal n.
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