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7 Cards in this Set
- Front
- Back
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Sternocleidomastoid |
O- manubrium of sternum, clavicle I- mastoid process of temporal bone, occipital bone Action- bilateral- extends atlanto-occipital joint, flexes whole cervicle region Unilaterally- rotation, lateral flexion Nerve supply- CXII- accessory nerve, C2, C3 VPR Blood supply- superior thyroid artery, occipital artery, posterior auricular artery, supraclavicular artery |
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Digastric
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O- post belly- mastoid notch to intermediate tendon (through fascial loop of hyoid bone) to anterior belly I- Mandible A- depresses mandible or elevates hyoid (swallowing) Nerve supply- Post belly- V3, Mandibular branch trigeminal nerve (X), Ant belly- VII, facial nerve Blood supply- posterior auricular art, occipital art., submental art |
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Stylohyoid |
O- styloid process of temporal bone
I- greater cornu of hyoid bone action- elevates hyoid nerve supply- VII, facial nerve blood supply- facial artery, occipital artery |
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posterior triangle of neck
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SCM and posterior
Vessels- subclavian, superficialvervical, suprascapular, occipital arteries veins- external jugular, subclavian nerves-brachial plexus nerve roots dorsal scapular and long thoracic, spinal accessory nerve, superficial cervical plexus, scalenus muscle |
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Splenis Capitis
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O- lower 1/2 of ligamentum nuchae, SPs C7-T4
I- mastoid process, occipital bone Action- bilaterally- extension of neck, unilaterally- lateral flexion and rotation of neck nerve supply- DPR blood supply- subclavian, superficial cervical, suprascapular, occipital |
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bilateral action of suboccipital muscles
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rectus (maj/min)- extension of occipital bone/C1
oblique-superior-extension of occiput inferior- no extension |
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unilateral action of suboccipital muscles
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rectus- extension, rotation, and lateral flexion to ipsilateral side of muscleoblique- superior- extension and lateral rotationInferior- rotation
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