back and neck 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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| splenius capitis - attachments | lower 1/2 of ligamentum nuchae and SP of upper 3-4 TVs ---> mastoid process and adjoining occipital bone
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| splenius cervices - attachments | lower 1/2 of ligamentum nuchae and SP of upper 3-4 TVs ----> TPs of upper CV
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| iliocostalis lumborum - attachments | sacrum, iliac crest, LV SPs -------> angles of lower 6 ribs
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| iliocostalis thoracis - attachments | angles of lower 6 ribs ------ > angles of upper 6 ribs
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| iliocostalis cervicis - attachments | angles of upper 6 ribs -----> TPs of the CV
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| longissimus thoracis - attachments | sacrum, Iliocostalis Lumborum, TPs of LV ------> lower 9 ribs and TPs
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| longissimus cervicis - attachments | T1-T6 TPs ------> C2 - C6 TPs
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| longissimus capitis - attachments | C2 - C7 articular pillars -------> mastoid process
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| spinalis thoracis - attachments | T11 - L2 SPs ---------> T1 - T8 SPs
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| spinalis cervicis - attachments | C7 SP and ligamentum nuchae --------> C2 - C4 SPs
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| spinalis capitis - attachments | blends with semispinalis, both attachments
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| semispinalis thoracis - - attachments | TPs of T7 - T12 --------> SP of C6 - T2
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| semispinalis cervices - attachments | TPs of T1 - T6 ---------> SP of C2 - C5
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| semispinalis capitis - attachments | TPs of C4 - T6 ---------> occipital bone
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| multifidus - attachments | posterior sacrum, iliac crest, TPs, and lumbar mammilary processes ---------> C2 - L5 SPs spans 2-4 segments
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| rotatores - attachments | TPs ----------> SP of C2 - L5 spans 1 -2 segments
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| interspinales - attachments | connects spines of contiguous vertebrae
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| intertransversarii - attachments | connects transverse processes of contiguous vertebrae
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| rectus capitis posterior major - attachments | spine of axis --------> lateral part of inferior nuchal line of occipital bone
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| rectus capitis posterior minor - attachments | posterior aspect of atlas ----------> medial part of inferior nuchal line
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| obliquus capitis inferior - attachments | spine of axis ----------> transverse process of atlas
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| obliquus capitis superior - attachments | transverse process of atlas ----------> occipital bone between superior and inferior nuchal lines
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| splenius capitis - action | bilateral: head and neck extension......unilateral: side bending and rotation to same side
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| splenius cervicis - action | bilateral: head and neck extension......unilateral: side bending and rotation to same side
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| iliocostalis - action | extension and side bending
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| longissimus - action | extension and side bending. also, capitis rotates head to same side
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| spinalis - action | extension
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| semispinalis - action | extension and rotation toward opposite side
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| multifidus - action | extension and rotation to opposite side
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| rotatores - action | extension and rotation to opposite side
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| interspinales - action | extension
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| intertransversarii - action | side bending
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| rectus capitis posterior major - action | extension of head and rotation toward same side
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| rectus capitis posterior minor - action | extension of head
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| obliquus capitis inferior - action | rotation of head toward same side
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| obliquus capitis superior - action | extension and side bending of head
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| borders of suboccipital triangle | rectus capitis posterior major, obliquus capitis inferior, obliquus capitis superior
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| floor of suboccipital triangle | posterior atlanto-occipital membrane and posterior arch of C1
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| contents of suboccipital triangle | vertebral artery and suboccipital nerve
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| psoas major - attachments | TPs of the LV, sides of bodies of T12-L5 and intervening discs, to the inferior attachment by a strong tendon to the lesser trochanter of the femur.
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| psoas major - innervation | lumbar plexus via the ventral branches of L2-L4 spinal nerves
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| iliacus - attachments |
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Created by:
migato2
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