dorsolateral (dorsolateral)

[L. dor sum, the back, + lat us ( later- ), side, + -al. ] Pertaining to the back and the side; dorsal and lateral in position; situated on the side of the back; dor so pleural. Also dors i lateral. - Dorsolateral muscle or muscles, the large segmented ma of muscle in fishes lying between the lateral and dorsal septa, and the muscles in higher animals which are de rived from this. dorsolumbar (dôr-so-lum'bär), a. [L. dorsum, the back, + lumbus, loin, + -ar.] In an at., pertaining to the whole dorsal (that is, the thoracic and lumbar) region of the trunk of the body: said especially of those vertebræ, collectively considered, which intervene between the cervical and the sacral vertebræ proper. The most obvious and usual distinction between dorsal and lumbar vertebræ being the presence of developed ribs on the former and their absence from the latter, and ribs being frequently developed from the cervical to the sacral region of the spine, the whole series of such rib-bearing vertebræ is called dorsolumbar. The epithet is also used in the phrase dorsolumbar region. Also dors i lumbar. The variations within the dorsolumbar region depend on the ribs. Gegenbaur, Comp. Anat. (trans.), p.