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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 lumbar plexus and its branches. Since the lumbar plexus and sacral plexus are interconnected, they are sometimes referred to as the lumbosacral plexus . The intercostal nerves that give rami to the chest and to the upper parts of the abdominal wall efferent motor innervation and to the pleura and peritoneum afferent sensory innervation are ...
The nerve to piriformis is a branch of the sacral plexus. [ 1 ] [ 2 ] It (typically [ 3 ] ) arises from the posterior divisions [ 4 ] /branches [ 3 ] of anterior rami of S1 and S2. [ 1 ] [ 2 ] [ 3 ] [ 5 ]
The lumbosacral trunk is formed by the union of the entire anterior ramus of lumbar nerve L5 and a part of L4 [clarification needed]. [1] [2] [3] L4 first issues its branches to the lumbar plexus, then emerges from the medial border of the psoas muscle [3] to unite with the anterior ramus of L5 just superior to the pelvic brim to form the thick, cord-like trunk which [4] crosses the pelvic ...
It is the largest branch of the sacral plexus and runs alongside the hip joint and down the right lower limb. It is the longest and widest single nerve in the human body, going from the top of the leg to the foot on the posterior aspect. The sciatic nerve has no cutaneous branches for the thigh.
Its branches are all cutaneous, and are distributed to the gluteal region, the perineum, and the back of the thigh and leg. The inferior clunial nerves (or gluteal branches), three or four in number, turn upward around the lower border of the gluteus maximus , and supply the skin covering the lower and lateral part of that muscle.
The nerve to quadratus femoris is a nerve of the sacral plexus that provides motor innervation to the quadratus femoris muscle and gemellus inferior muscle, and an articular branch to the hip joint. The nerve leaves the pelvis through the greater sciatic foramen .
Download as PDF; Printable version; In other projects ... The plan of the lumbosacral plexus. Details; Identifiers; Latin: nervi spinalis: FMA: 6424: Anatomical terms ...