10-26-11

Anatomy

Intercostals (mm b/w each rib-there's an external and an internal-fibers run perpendicular to each other)
O: inferior boarder of the rib above
I: superior boarder of the rib below
A: external- draws ribs superiorly (increase space and assist inhalation)
Internal- draw ribs inferiorly (decrease space assist exhale)

Serratus Posterior Superior
O: SP of C7-T3
I: posterior surface of 2-5th ribs
A: elevate ribs during inhalation

Serratus Posterior Inferior
O: SP of T12-L3
I: Posterior surface 9-12th ribs
A: depress ribs during exhalation

Intertransversarii
O and I:
cervical- spanning the TP of vertebrae C2-C7
lumbar- spanning TP L1-L5
A: unilaterally- laterally flex vertebrae column to same side
bilaterally- extend column

Interspinalis (deep to ligament)
O and I:
cervical- SP of C2-T3
lumbar- SP of T12-L5
A: extend vertebrae column

Ligamentum nuchae it spans external occipital protuberance to C7, it's fin like, an antigravity device

Supraspinous ligament- in thoracic and lumbar area

Abdominal aorta- deep to small intestine, lies on anterior surface of vert., 1" diameter.