Lumbosacral Plexus

Lumbosacral plexus Description A plexus is a collection of formations based on a general structural plan. The areas of the body covered with skin are the site of formation of cellular plexuses (sympathetic) and form the sympathetic nervous system. The nerve fibers that branch form three plexuses: superficial, located under the skin and lying between the two fasciae; prevertebral, passing between the upper edge of the deep transverse fascia and the outer layer of connective tissue covering the muscles of the back. In this section there are 2 groups of spinal ganglia. Near the spine there is a third plexus, the brachial plexus. All plexuses participate in the formation of topographic-anatomical areas that play a large role in determining the mobility and innervation of various parts of the human body.

Structure The posterior branches of the lumbar and sacral nerves unite at the level of the 3rd-4th lumbar vertebrae, forming the greater sciatic nerve plexus; it passes along the lateral surface to the inferior gluteal and femoral nerves. Topographically, the sciatic plexus includes the deep and belt

The lumbosacral plexus is a collection of nerve fibers in the lumbar and sacral region. It consists of several types of nerves: posterior sacral, spinal, parasympathetic and autonomic nerves.

Functions of the lumbosacral zone:

- Regulation of the functioning of internal organs and systems of the body: cardiovascular, respiratory, digestive and others. - Providing innervation of the pelvic organs and genitourinary system, ureters and bladder, reproductive system, skin, pelvic muscles, lower extremities and gluteal, muscles and bones