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20 Cards in this Set
- Front
- Back
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Facial expression muscles originate here
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Superficial fascia or bones of the skull
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Facial expression muscles insert here
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Superficial fascia
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Facial expression muscles are innervated by this
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CN VII
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Action of Frontalis muscle
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wrinkles skin of forehead
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Action of orbicularis oculi
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close eye
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Action of zygomaticus major
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"smile" muscle
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Action of Orbicularis oris
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Close mouth
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Muscles of masstication innervate here
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CN V
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Muscles of masstication have their insertion here
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Ramus of mandible
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Origin: lateral skull
Action: elevate mandible |
Temporalis
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Origin: zygomatics
Action: elevate mandible |
Masseter
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Origin: clavicle and sternum
Insertion: mastoid process Action: flex head/neck Innervation: CN XI |
Sternocleidomastoid
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Origin: Occipital bone, superior vertebrae (ligamentum nuchae)
Insertion: acromion, spine of scapula, clavicle Action: adduct shoulder Innervation: CN XI |
Trapezius
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Origin: transverese processes of cervical vertebrae
Insertion: superior medial border of scapula Action: elevate shoulder Innervation: C3-C5 (dorsal scapular) |
Levator scapulae
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Origin: Vertebral spinous processes of thorax
Insertion: medial border of scapula Action: adduct shoulder Innervation: C5 (dorsal scapular) |
Rhomboideus
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Origin: ribs 1-8
Insertion: medial border of scapula Action: stabilizes scapula Innervation: Long thoracic nerve (C5-C7) |
Serratus anterior
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How innervation for the serratus anterior is unique
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Superficial not deeps
-Allows notation on scapula* |
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Origin: inferior angle of scapula
Insertion: intertubercular groove of humerus (between greater and lesser tubercle) Action: adduction and medial rotation of shoulder Innervation: Inferior subscapular nerve (C5-C6) |
Teres major
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Origin: lumbar vertebrae (lumbothoracic fascia)
Insertion: proximal humerus Action: adduction, medial rotation of shoulder Innervation: Thoracodorsal nerve (C6-C8) Fan shaped muscle |
Latissimus dorsi
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Origin: Sternum/ribs (2-5)
Insertion: proximal humerus (greater tubercle and intertubercular groove) Action: adduction/medial rotation Innervation: Lateral and medial pectoral nerves (C5-T1) |
Pectoralis MAJOR
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