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16 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Serratus posterior superior
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Orig: Lower part of ligamentum nuchae
Spines of C7 and T1-3 Ins: Upper borders and outer surfaces of ribs 2-5 lateral to their angles |
Action: Elevates upper ribs, but maybe not in respiration
N: VENTRAL RAMI of T2-5 |
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Serratus posterior inferior
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Orig: Spines of T11-12 and L1-3
Ins: Lower borders and outer surfaces of ribs 9-12 lateral to their angles |
Action: Possibly involved in respiration
N: VENTRAL RAMI of T-9-12 |
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Splenius capitis
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Orig: from lower half of ligamentum nuchae and spines of C7-T4
Ins: into mastoid process and lateral third of superior nuchal line |
Action: Acting bilaterally, extend head and neck
Acting unilaterally, side bend and rotate head to same side N: DORSAL RAMI of C2-5 |
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Splenius cervicis
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Orig: From spines of T3-6
Ins: into posterior transverse tubercles of C1-3 |
Action: Acting bilaterally, extend head and neck
Acting unilaterally, side bend neck and rotate head and neck to same side N: Dorsal rami of C2-5 |
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Iliocostalis
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Orig: medial surface of back of iliac crest and spines of T11-L5
Ins: angles of ribs and posterior transverse tubercles as high as C4 (cervicis, thoracis, lumborum) |
Action: Acting bilaterally, extends spine and head
Acting unilaterally, side bends and rotates spine and head to same side Portions originating on pelvis can anteriorly tilt pelvis N: DORSAL RAMI of cervical, thoracic and lumbar spinal nerves |
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Longissimus
(capitis, cervicis and thoracis) |
Orig: medial surface of back of iliac crest and spines of T11-L5
Ins: transverse processes, lower 9 or 10 ribs between tubercles and angles, and mastoid process |
Action: Acting bilaterally, extends spine and head
Acting unilaterally, side bends and rotates spine and head to same side Portions that originate on pelvis can anteriorly tilt pelvis N: DORSAL RAMI of cervical, thoracic, and lumbar spinal nerves |
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Spinalis
(mostly thoracic, maybe cervicis) |
Orig: medial surface of back of iliac crest and spines of T11-L5
Ins: spines between L2 and T2 |
Action: Acting bilaterally, extends spine and head
Acting unilaterally, side bends and rotates spine and head to same side Portions that originate on pelvis can anteriorly tilt pelvis N: DORSAL RAMI of cervical, thoracic, and lumbar spinal nerves |
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Semispinalis
(capitis, cervicis, thoracis) |
Orig: extends from lower thoracic region in bundles
Ins: between superior and inferior nuchal lines on occipital bone |
Action: Acting bilaterally, extends spine and head
Acting unilaterally, side bends spine to same side and rotates to opposite side N: DORSAL RAMI of spinal nerves |
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Multifidus
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Orig: Sacrum (S4), with bundles spanning 2-3 vertebrae
Ins: Axis (C2) |
Action: Acting bilaterally, extends spine
Acting unilaterally, side bends spine to same side and rotates to opposite side N: DORSAL RAMI of spinal nerves |
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Rotatores
(brevis and longus) |
Orig: span one (brevis) or two (longus) vertebrae in thoracic region
Insertion: spanning 1-2 vertebrae |
Action: Acting bilaterally, extends spine
Acting unilaterally, side bends spine to same side and rotates to opposite side N: DORSAL RAMI of spinal nerves |
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Interspinalis
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Orig: paired, between adjacent spines in cervical and lumbar regions
Ins: Spine to spine |
Action: extension of the spine
N: DORSAL RAMI |
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Intertransversarii
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Orig: between adjacent transverse processes in cervical and lumbar regions
Ins: Transverse process to transverse process |
Action: Side bending
N: DORSAL RAMI |
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Rectus capitis posterior major
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Origin: Spine of axis
Ins: Lateral part of inferior nuchal line |
Action: Extends and rotates head to same side
N: DORSAL RAMUS of C1 (suboccipital nerve) |
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Rectus capitis posterior minor
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Origin: Posterior tubercle of atlas
Ins: Medial part of inferior nuchal line |
Action: Extends head
N: DORSAL RAMUS of C1 (suboccipital nerve) |
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Obliquus capitis inferior
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Origin: Spine of axis
Ins: Transverse process of atlas |
Action: Rotates head to same side
N: DORSAL RAMUS of C1 (suboccipital nerve) |
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Obliquus capitis superior
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Orig: Transverse process of atlas
Ins: Between superior and inferior nuchal lines |
Action: Extends and side bends head
N: DORSAL RAMUS of C1 (suboccipital nerve) |
