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English: An (admittedly extremely rough) schematic of the sacral plexus based on "Netter, Frank (2011) Atlas of Human Anatomy, Saunders Elsevier, pp. 487 ISBN: 978-1-4160-5951-6. " or equivalently the reproduction at this site.
In human anatomy, the sacral plexus is a nerve plexus which provides motor and sensory nerves for the posterior thigh, most of the lower leg and foot, and part of the pelvis. It is part of the lumbosacral plexus and emerges from the lumbar vertebrae and sacral vertebrae (L4-S4). [ 1 ]
The following outline is provided as an overview of and topical guide to human anatomy: . Human anatomy is the scientific study of the morphology of the adult human.It is subdivided into gross anatomy and microscopic anatomy.
lumbar, median sacral, iliolumbar, subcostal arteries: subcostal nerve, anterior rami of spinal nerves L1-L4 flexes trunk to same side, fixes rib 12 during inspiration, extends trunk 2 1 iliocostalis colli Torso, Back, right/left sacrum, iliac crest, thoracolumbar fascia, spinous processes: ribs: lateral sacral artery: posterior branch of ...
It is a branch of the sacral plexus. It supplies the skin of the posterior surface of the thigh , leg , buttock , and also the perineum . Unlike most nerves termed "cutaneous" which are subcutaneous, only the terminal branches of this nerve pass into subcutaneous tissue before being distributed to the skin, with most of the nerve itself ...
In humans, the sciatic nerve is formed from the L4 to S3 segments of the sacral plexus, a collection of nerve fibres that emerge from the sacral part of the spinal cord. The lumbosacral trunk from the L4 and L5 roots descends between the sacral promontory and ala, and the S1 to S3 roots emerge from the ventral sacral foramina.
Tyler Seguin #91 of the Dallas Stars celebrates with teammates after a goal against the Carolina Hurricanes on Nov. 25, 2024. / Credit: Photo by Josh Lavallee/NHLI via Getty Images
The lesser pelvis (or "true pelvis") is the space enclosed by the pelvic girdle and below the pelvic brim: between the pelvic inlet and the pelvic floor. This cavity is a short, curved canal, deeper on its posterior than on its anterior wall. [1]