from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. Of or pertaining to the lumbar and sacral regions of the back; the small of the back and the back portion of the pelvis.
from the GNU version of the Collaborative International Dictionary of English
- n. Of or pertaining to the loins and sacrum.
from The Century Dictionary and Cyclopedia
- Pertaining to the lumbar and the sacral region of the spine.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adj. of or relating to or near the small of the back and the back part of the pelvis between the hips
Sorry, no etymologies found.
Today, ergonomists worry less about manual laborers' arms than about their backs, because the lower back specifically the lumbosacral junction is now understood to be the weakest link in the "body segment chain."
Believe it or not, the study showed "mild degenerative disk disease," but it had no impact whatsoever on management: wear a lumbosacral support; activity to comfort.
First, there have been a fairly limited number of morphological studies involving the human lumbosacral cord showing loss of motor neurons after age sixty.
-- The lumbosacral plexus results substantially from the union of the ventral branches of the last three lumbar and the first two sacral nerves, but it derives a small root from the third lumbar nerve also.
Aside from paraplegic conditions due to disease of the cord or the lumbosacral plexus, and monoplegic affections resultant from disturbances of this plexus, paralysis of certain nerves are occasionally encountered.
The sacral plexus is formed by the lumbosacral trunk, the anterior division of the first, and portions of the anterior divisions of the second and third sacral nerves.
The lumbosacral trunk comprises the whole of the anterior division of the fifth and a part of that of the fourth lumbar nerve; it appears at the medial margin of the Psoas major and runs downward over the pelvic brim to join the first sacral nerve.
The superior gluteal vessels run between the lumbosacral trunk and the first sacral nerve, and the inferior gluteal vessels between the second and third sacral nerves.
The anterior divisions of the lumbar, sacral, and coccygeal nerves form the lumbosacral plexus, the first lumbar nerve being frequently joined by a branch from the twelfth thoracic.
The smaller part of the fourth joins with the fifth to form the lumbosacral trunk, which assists in the formation of the sacral plexus.