Spine/Thorax_OI

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Origin of the Spinalis muscle
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Terms in this set (67)
Origin of Rotatores MusclesTransverse processes of lumbar through cervical vertebraeInsertion of Rotatores and Multifidi MusclesSpinous processes of lumbar vertebrae through second cervical vertebraeMultifidi spans2-4 vertebraeRotatores spans1-2 vertebraeActions of the Multifidi and RotatoresUnilaterally these 2 muscles rotate the vertebral column to the opposite side. Bilaterally they extend the vertebral column.Origin of the Semispinalis CapitisTransverse processes of C-4 to T-5Insertion of the Semispinalis CapitisBetween superior & inferior nuchal lines of occiputAction of the Semispinalis CapitisExtends vertebral column & headOrigin of the Splenius CapitisInferior one-half of ligamentum nuchae & spinous processes of C-7 to T-4Insertion of the Splenius CapitisMastoid process & lateral portion of superior nuchal lineOrigin of Splenius CervicisSpinous processes of T-3 to T-6Insertion of Splenius CervicisTransverse processes of C-1 to C-3.Actions of Splenius Capitis and CervicisUnilaterally these muscles rotate the head and neck to the same side. Bilaterally they extend the head and neck.Origin of the Rectus Capitis Posterior MajorSpinous process of the axis (C-2).Insertion of the Rectus Capitis Posterior MajorInferior nuchal line of the occiputOrigin of the Rectus Capitis Posterior MinorTubercle of the posterior arch of the atlas (C-1).Insertion of the Rectus Capitis Posterior MinorInferior nuchal line of occiputOrigin of Oblique Capitis SuperiorTransverse process of the atlas (C-1)Insertion of Oblique Capitis SuperiorBetween the nuchal lines of occiputOrigin of the Oblique Capitis InferiorSpinous process of the axis (C2)Insertion of the Oblique Capitis InferiorTransverse process of the atlas (C-1)Actions of Rectus Capitis Posterior Major, Rectus Posterior Minor, & Oblique Capitis SuperiorRock & tilt head back into extensionActions of the Rectus Capitis Posterior Major & Oblique Capitis InferiorRotate head to same sideActions of Oblique Capitis SuperiorLaterally flex head to same sideOrigin of the Quadratus LumborumPosterior iliac crestInsertion of Quadratus LumborumLast rib & transverse processes of 1st-4th lumbar vertebraeActions of Quadratus LumborumUnilaterally: Laterally tilt (elevate) pelvis Laterally flex vertebral column to same side Assist to extend vertebral column Bilaterally: Fix last rib and transverse processes of 1st-4th lumbar vertebraeAbdominal muscles IncludeRectus Abdominis External Oblique Internal Oblique Transversus AbdominisOrigin of Rectus AbdominisPubic crest & pubic symphysisInsertion of Rectus AbdominisCartilage of 5th,6th, & 7th ribs and xiphoid processActions of Rectus AbdominisFlex vertebral column and Tilt pelvis posteriorlyOrigin of External ObliqueExternal surfaces of 5th to 12th ribsInsertion of External ObliqueAnterior part of the iliac crest & abdominal aponeurosis to linea albaActions of External ObliqueUnilaterally: Laterally flex vertebral column to same side Rotate vertebral column to opposite side Bilaterally: Flex vertebral column Compress abdominal contentsOrigin of Internal ObliqueLateral inguinal ligament Iliac crest Thoracolumbar fasciaInsertion of Internal ObliqueInternal surface of lower 3 ribs Abdominal aponeurosis to linea albaActions of Internal ObliqueUnilaterally: Laterally flex vertebral column to same side Rotate vertebral column to same side Bilaterally: Flex vertebral column Compress abdominal contentsOrigin of Transverse AbdominisLateral inguinal ligament Iliac crest Thoracolumbar fascia Internal surface of lower 6 ribsInsertion of Transverse AbdominisAbdominal aponeurosis to linea albaActions of Transverse AbdominisCompress abdominal contentsOrigin of DiaphragmCostal attachment: Inner surface of lower six ribs Lumbar attachment: Upper 2 or 3 lumbar vertebrae Sternal attachment: Inner part of xiphoid processInsertion of DiaphragmCentral tendonActions of DiaphragmDraw down central tendon of diaphragm Increase volume of thoracic cavity during inhalationOrigin of IntercostalsInferior border of rib aboveInsertion of IntercostalsSuperior border of rib belowActions of External Intercostals:Draw ribs superiorly (increasing space of thoracic cavity) to assist with inhalationActions of Internal IntercostalsDraw ribs inferiorly (decreasing space of thoracic cavity) to assist with exhalationOrigin of Serratus Posterior SuperiorSpinous processes of C-7 to T-3Insertion of Serratus Posterior SuperiorPosterior surface of 2nd - 5th ribsAction of Serratus Posterior SuperiorElevate ribs during inhalationOrigin of Serratus Posterior InferiorSpinous processes of T-12 to L-3Insertion of Serratus Posterior InferiorPosterior surface of 9th-12th ribsAction of Serratus Posterior InferiorDepress ribs during exhalationOrigin & Insertion of IntertransversariiCervical: Spanning transverse processes of vertebrae C-2 to C-7 Lumbar: Spanning transverse processes of vertebrae L-1 to L-5Actions of IntertransversariiUnilaterally: Laterally flex vertebral column to same side Bilaterally: Extend vertebral columnOrigin and Insertion of InterspinalisCervical: Spanning spinous processes of C-2 to T-3 Lumbar: Spanning spinous processes of T-12 to L-5Actions of the InterspinalisExtend vertebral column