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13 Cards in this Set
- Front
- Back
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Upper Trapezius |
Proximal attachment: occiput & nuchal ligament Distal attachment: classical & acromion process Action: elevates & upward rotation of scapula Nerve: Spinal accessory C3, C4 |
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Middle Trapezius |
Proximal attachment: spinous process of C7-T3 Distal attachment: spine of scapula Action: retracts (adduction) of scapula Nerve: spinal accessory C3, C4 |
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Lower Trapezius |
Proximal attachment: spinous process C7-T12 Distal attachment: spine of scapula Action: depresses & upward rotation of scapula Nerve:spinal accessory C3, C4 |
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Levator Scapulae |
Proximal attachment: transverse process C1-C4 Distal attachment: scapula (vertebral border near superior angle) Action: elevates & downward rotation of scapula Nerve: dorsal spinal nerve |
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Anterior Deltoid |
Proximal attachment: classical (outer 3rd) Distal attachment: deltoid tuberosity Action: flexes, internal rotation, horizontal adduction of humerus at the shoulder Nerve: axillary |
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Middle Deltoid |
Proximal attachment: acromion process Distal attachment: deltoid tuberosity Action: abduction of the humerus at the shoulder Nerve:axillary |
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Posterior Deltoid |
Proximal attachment: scapular spine Distal attachment: deltoid tuberosity Action: extension, hyperextension, external rotation, and horizontal abduction at the shoulder Nerve: axillary |
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Masseter |
Proximal attachment: zygomatic arch Distal attachment: mandibular ramus Action: elevates mandible Nerve:trigeminal (CN V) mandibular branch |
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Digastric |
Proximal attachment: anterior belly, digastric fossa. posterior belly, mastoid process Distal attachment: hyoid bone Action: elevates larynx & depresses mandible Nerve: trigeminal (anterior) & facial (posterior) |
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Mylohyoid |
Proximal attachment: mandible Distal attachment: hyoid Action: depresses mandible & elevates floor of the mouth Nerve: trigeminal, mandibular branch |
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Sternohyoid |
Proximal attachment: sternum (manibrum) Distal attachment: hyoid Action: depresses hyoid & larynx Nerve:hypoglossal & C1-3 via ansa cervicalis |
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Sternocleidomastoid
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Proximal attachment: sternum (manibrum) Distal attachment: mastoid region Action: bilaterally flexes the neck, unilaterally bends the head, contra-laterally rotates the face
Nerve: spinal accessory |
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Pectoralis Major |
Proximal attachment: clavicle, sternum, ribs 2-6
Distal attachment: inter tubercular groove
Action: horizontal adduction, adduction, and internal rotation of the humerus at the shoulder
Nerve: medical and lateral pectoral nerves |
