B's origins & insertions of trunk muscles
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| spinalis capitis | SP of low cerv and up thor | occipital bone
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| spinalis cervicis | SP of lower cerv and upper thor (C6 - T2) | SP of mid cerv (C2 [C3, C4])
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| spinalis thoracis | SP of low thor and upper lumb | SP mid thor
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| longissimus capitis | AP and TP of mid-low cerv, TP of of up thor | mastoid process
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| longissimus cervicis | TP of upper thor (T1 - T5) | TP of mid cerv (C2 - C6)
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| longissimus thoracis | sacrum, iliac crest, TP of low thor and lumb | TP of thor and upper lumb, all ribs btn tubercles and angles
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| iliocostalis cervicis | angles of ribs 1 - 6 | TP of C4 - C6
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| iliocostalis thoracis | upper border of ribs 6 - 12 | lower border of angles of ribs 1 - 6
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| iliocostalis lumborum | sacrum, iliac crest, SP of low thor and lumb | lower border of angles of ribs 6 - 12
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| semispinalis capitis | AP of C4 - C7, TP of T1 - T6 | occipital bone
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| semispinalis cervicis | TP of T1 - T6 (or lower) | SP of C2 - T5 or T6
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| semispinalis thoracis | TP of T6 - T12 | SP of upper thor and lower cerv
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| multifidus (cervical region) | AP of C4 - C7 | SP of C2 - C4 (up 1 - 3 segs)
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| multifidus (thoracic region) | TP of T1 - T12 | SP of C6 - T10 (up 1 - 3 segs)
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| multifidus (lumbar region) | sacrum, PSIS, deep surf of tendinous origin of ES, mamillary processes of L1 - L5 | SP of thor and upper lumb (up 1 - 3 segs)
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| rotatores | TP of all vert | SP of all vert (up 1 or 2)
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| interspinalis | all SP | all SP (up 1)
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| intertransversarii | all TP | all TP (up 1)
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| external oblique | external surfaces of ribs 5 - 12 | linea alba
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| internal oblique | lat 1/2 inguinal lig, ant 2/3 iliac crest, thoracolumnar fascia | linea alba, ribs 7 - 10
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| transverse abdominis | lat. inguinal lig, iliac crest, costal cart of lower ribs, thoracolumnar fascia | linea alba
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| rectus abdominis | symphysis pubis | costal cart of ribs 5 - 7, xiphoid process
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| quadratus lumborum | iliac crest, iliolumbar lig | rib 12, inferior border of TP of L1 - L4
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Created by:
BethKet
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