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30 Cards in this Set
- Front
- Back
Sternocleimastoid origin |
Sternum and clavicle |
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Sternocleimastoid insertion |
Mastoid process |
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Sternocleimastoid action |
Bilaterally: flexes neck; hyperextends head Unilaterally: laterally bends the neck; rotates face to the opposite side |
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Sternocleimastoid innervation |
Accessory nerve (cranial nerve XI) 2nd and 3rd cervical nerves |
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Scalene origin |
Transverse process of the cervical vertebrae |
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Scalene insertion |
First and second ribs |
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Scalene action |
Bilaterally: assists in neck flexion Unilaterally: neck lateral bending |
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Scalene innervation |
Lower cervical nerves (C3 to C8) |
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Prevertebral muscle origins |
Anterior portion of cervical vertebrae |
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Prevertebral muscle insertions |
Occipital bone portions of C1-C6 |
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Prevertebral actions |
Assists with neck flexion. Primary role is maintaining postural control |
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Splenius capitis origin |
Lower half of nuchal ligament Spinous process of C7-T3 |
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Splenius capitis insertion |
Lateral occipital bone Mastoid process |
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Splenius capitis action |
Bilaterally: extends the head and neck Unilaterally: laterally bends and rotates the face to the same side |
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Splenius capitis innervation |
Middle and lower cervical nerves |
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Splenius cervicis origin |
Spinous process of T3-T6 |
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Splenius cervicis insertion |
Transverse process of C1-C3 |
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Splenius cervicis action |
Bilaterally: extends neck Unilaterally: laterally bend and rotate the face to the same side |
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Splenius cervicis innervation |
Middle and lower cervical nerves |
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Suboccipital origin |
Base of occiput |
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Suboccipital insertion |
Transverse and spinous process of C1-C3 |
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Suboccipital action |
Capital extension Stabilization of the Ao and Aa joints |
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External oblique origin |
Iliac Crest Pubic tubercle Linear aspera |
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External oblique insertion |
Lower 8 ribs laterally |
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External oblique action |
Bilaterally: trunk flexion, compression of abdomen Unilaterally: lateral bending to the same side; rotation to the opposite side |
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External oblique innervation |
8th-12th intercostal, iliohypogastric, and ilioinguinal nerves |
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Internal oblique origin |
Inguinal ligament, iliac Crest, thoracolumbar fascia |
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Internal oblique insertion |
8th - 12th ribs, lines alba |
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Internal oblique action |
Bilaterally: trunk flexion; compression of abdomen Unilaterally: lateral bending; rotation to same side |
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Internal oblique innervation |
8th-12th intercostal, iliohypogastric, and ilioinguinal nerves |
