Term
Erector Spinae Group O - Common Tendon (thoracolumbar aponeurosis), attaching to posterior surface of sacrum, iliac crest, spinous processes of lumbar and last thoracic vertebrae. I - Posterior ribs, spinous and transverse processes of thoracic and cervical vertebrae, mastoid process of temporal bone. |
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Definition
Actions *Bilaterally extend vertebral column
*Unilaterally flex vertebral column, same side |
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Term
Transversospinalis group O - sacrum and transverse processes L, T, and C vertebrae, articular processes lower cervicals I - Spinous processes L, T, and C vertabrae (x- C1), superior nuchal line of occiput |
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Definition
Actions * Bilaterally: Extend vertebral column and head * Unilaterally: Rotate vertebral column to opposite side |
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Term
Splenius Capitus and Cervicis Capitus O - Ligamentum nuchae, spinous processes of C7 - T3 I - Mastoid process and lateral portion of superior nuchal line Cervicis O - Spinous process T3-T6 I - Transverse process upper cervical vertebrae |
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Definition
Actions *Unilaterally: rotate head to same side flex head/neck *Bilaterally: Extend head/neck |
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Term
Suboccipitals O - Spinous process of axis (C2), tubercle and transverse process of atlas (C1) I - Inferior nuchal line of occiput, transverse process atlas (C1) |
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Definition
Actions *rock and tilt head into extension *rotate head to same side |
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Term
Quadratus Lumborum O - Posterior iliac crest I - Last rib and transverse processes of 1st-4th lumbar vertebrae. |
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Definition
Actions *Elevate hip *Laterally flex vertebral column *Assist in extending vertebral column *Fixes last rib during respiration |
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Term
Rectus Abdominus O - Pubic crest, pubic symphysis I - Cartilage of 5th, 6th, and 7th ribs and xiphoid process |
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Definition
Actions *Flex vertebral column |
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Term
External Oblique O - Lower 8 ribs I - Anterior part iliac crest, abdominal aponeurosis to linea alba |
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Definition
Actions *Flex vertebral column *Laterally flex vertebral column to same side *Compress abdominal contents *Rotate vertebral column to opposite side |
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Term
Internal Oblique O - Lateral inguinal ligament, iliac crest and thoracolumbar fascia I - Internal surface lower 3 ribs, abdominal aponeurosis to linea alba |
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Definition
Actions *Flex vertebral column *Compress abdominal contents *Laterally flex vertebral column to same side *Rotate vertebral column to same side |
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Term
Transverse Abdominus O - Lateral inguinal ligament, iliac crest, thoracolumbar fascia and internal surface of lower 6 ribs I - Abdominal aponeurosis to linea alba |
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Definition
Actions *Compress abdominal contents |
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Term
Intercostals O - Inferior border of rib above I - Superior border of rib below |
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Definition
Actions *External: Increase space of thoracic cavity *Internal: Decrease space of thoracic cavity |
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Term
Diaphragm O - Costal Attachment: Inner surface lower 6 ribs Lumbar Attachment: Upper 2 or 3 lumbar vertebrae Sternal Attachment: Inner part of xiphoid process I - Central tendon |
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Definition
Actions *Draw down central tendon of diaphragm *Increase volume of thoracic cavity |
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