2023年10月30日 · The sacral plexus is a network of nerves formed by the lumbosacral trunk (L4, L5) and sacral spinal nerves (S1 - S4). The sacral plexus is located on the posterior pelvic wall, posterior to the internal iliac vessels and ureter, and anterior to the piriformis muscle.

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]

2023年7月8日 · The sacral plexus is a network of nerve fibres that supplies the skin and muscles of the pelvis and lower limb. It is located on the surface of the posterior pelvic wall, anterior to the piriformis muscle.

2023年4月28日 · Often described as part of the lumbosacral plexus, the sacral plexus is located lower in the body than any of the other nerve plexi. The sacral plexus is formed by the lowest lumbar spinal nerves, L4 and L5, as well as sacral nerves S1 through S4.

The sacral plexus is situated on the posterolateral wall of the pelvic cavity, lying anterior to the Piriformis. The sacral contributions pass out of the anterior sacral foramina and course laterally & inferiorly on the pelvic wall.

2024年9月5日 · The sacral plexus forms on the anterior belly of the piriformis muscle and is formed by the lumbosacral trunk (L4-5) of the lumbar plexus, which enters the pelvis coursing medially to psoas major and unites with the ventral rami of the S1 to S4 nerve roots, which emerge from the anterior foramina of the sacrum. It forms a triangular shape with ...

2025年1月22日 · The sacral plexus is a network of nerves formed by the union of the ventral rami of the L4, L5, S1, S2, S3, and a part of S4 spinal nerves. It is responsible for supplying nerves to the pelvis, lower limb, and parts of the genital and urinary systems.

The sacral plexus (plexus sacralis) is a nerve plexus that provides motor and sensory nerves for the posterior thigh, most of the lower leg, the entire foot, and part of the pelvis (see the...