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NWCC GA BACK M
Question | Answer |
---|---|
O:Lower ligamentum nuche, SP of upper thoracic (T1-3); I: Mastoid Process and adjacent occipital bone | Splenius Capitis; A.) Acting alone, laterally bend and rotate neck (turning face to same side) Acting with Splenius Cervicis, draws head back |
O: SP of upper thoracic (T3-T6); I: TP of upper cervical (C1-C3) | Splenius Cervicis; A.) Acting alone, laterally bend and rotate neck (turning face to same side) Acting with Splenius Capitis, draws head back |
O: Iliac Crest, sacrum, thoracolumbar fascia; I: Angles of lower ribs | Iliocostalis Lumborum; A.) Muscles acting bilaterally extend column & muscles acting on one side bend column laterally. |
O: Lower ribs; I: Angles of the upper ribs and TP of C7 | Iliocostalis Thoracis, A.) Muscles acting bilaterally extend column & muscles acting on one side bend column laterally. |
O: upper ribs; I: TP of mid-cervicals (C4-C6) | Iliocostalis Cervicis; A.) Muscles acting bilaterally extend column & muscles acting on one side bend column laterally. |
O: Sacrum, iliac crest, thoracolumbar fascia; I: lower 10 ribs and TP of lumbar and thoracic vertebrae | Longissimus Thoracis; A.) Muscles acting bilaterally extend column & muscles acting on one side bend column laterally. |
O: TP upper thoracic vertebrae; I: TP of cervical vertebrae (up to C2; not including C1) | Longissimus Cervicis; A.) Muscles acting bilaterally extend column & muscles acting on one side bend column laterally. |
O: TP upper thoracic, articular processes of lower cervical vertebrae' I: Mastoid Process | Longissimus Capitis; A:)Extends head and turns face to the same side. Muscles acting bilaterally extend column & muscles acting on one side bend column laterally. |
O: SP lower thoracic vertebrae; I: SP upper thoracic vertebrae | Spinalis Thoracis. A.) Muscles acting bilaterally extend column & muscles acting on one side bend column laterally. |
Often only scant fibers | Spinalis Cervicis |
Now considered part of the semispinalis capitis | Spinalis Capitis |
O: TP; I: SP of vertebrae ONE segment above origin | Short Rotators; A. Extend column and rotate to the opposite side |
O: TP; I: SP of vertebrae TWO segments above origin | Long Rotators; A. Extend column and rotate to the opposite side |
O: TP; I: SP of vertebrae TWO to FIVE segments above origin; | Multifidus; A. Extend column and rotate to the opposite side |
O: TP; I: SP of vertebrae 6 OR MORE segments above origin; SP of Upper thoracic vertebrae T1-4 | Semispinalis Thoracis; A.) Extend column and rotate to the opposite side |
O: TP; I: SP of vertebrae 6 OR MORE segments above origin; SP of cervical vertebrae up to C2 | Semispinalis Cervicis; A.) Extend column and rotate to the opposite side |
O: TP; I: SP of vertebrae 6 OR MORE segments above origin; occipital bone | Semispinalis Capitis; A.) Extend column and rotate to the opposite side |
O: SP; I: SP, best developed in cervical region, absent in thoracic region | Interspinalis; A.) extend the vertebral column |
O: TP; I: TP, best developed in cervical region, absent in most of thoracic area | Intertransversarii; A.) extend column and bend toward the same side |
O: SP of C2; I: Occipital bone, inferior to inferior nuchal line | Rectus Capitis Posterior Major, A.) Extend and rotate head to the same side |
O: Posterior tubercle of C1; I: Occipital bone, immediately medial to rectis capitis posterior major | Rectis Capitis Posterior Minor, A.) Extend and rotate head to the same side |
O: SP C2; I: TP C1 | Oliquus Capitis Inferior, A.) Extend and rotate head to the same side |
O: TP C1; I: occipital bone, near inferior nuchal line | Obliquus Capitis Superior, A.) Extend and rotate head to the same side |
The Suboccipital Triangle is bounded by which muscles? | Obliquus Capitis Superior, Obliquus Capitis Inferior, Rectus Capitis Posterior Major |
What are the structures within the suboccipital triangle? | Suboccipital nerve & Vertebral Artery |