A nerve plexus is a plexus (branching network) of intersecting nerves. [1] A nerve plexus is composed of afferent and efferent fibers that arise from the merging of the anterior rami of spinal nerves and blood vessels.

May 6, 2024 · A plexus is a bundle of intersecting nerves, blood vessels, or lymphatic vessels. Learn about where plexuses are located, their functions, and how they can be injured.

A nerve plexus is a network of intersecting nerves; multiple nerve plexuses exist in the body. Nerve plexuses are composed of afferent and efferent fibers that arise from the merging of the anterior rami of spinal nerves and blood vessels.

For every other spinal nerve, the axons of the ventral rami combine with those of nearby spinal nerves to form a plexus. In this instance, the word plexus is used to describe networks of nerve fibers with no associated cell bodies.

Feb 12, 2025 · The lumbar plexus is a network of nerve fibres that supplies the skin and musculature of the lower limb. It is located in the lumbar region, within the substance of the psoas major muscle and anterior to the transverse processes of the lumbar vertebrae.

Plexuses (networks of interwoven nerve fibers from different spinal nerves) may be damaged by injury, tumors, pockets of blood (hematomas), or autoimmune reactions. Pain, weakness, and loss of sensation occur in all or part of an arm or a leg.

A cervical plexus block involves injecting an anesthetic substance at numerous sites along the posterior border of the sternocleidomastoid muscle, primarily at the intersection of its superior and middle thirds, which is the neck’s nerve point. Because the cervical plexus block paralyzes the phrenic nerve that supplies the diaphragm and ...

digestive nerve plexus, intricate layers of nervous tissue that control movements in the esophagus, stomach, and intestines. The mechanics of the nervous system’s regulation of digestive functions is not fully known. Two major nerve centres are involved: the myenteric plexus (Auerbach’s plexus) and the submucous plexus (Meissner’s plexus).

A nerve plexus is a predictable, networked pattern of specific ventral rami that merge and divide, giving rise to a complex maze. The nerves that arise from a nerve plexus contain fibers from several levels of ventral rami.

A plexus is a network of intersecting nerve fibers that control both sensations and motor functions. The plexus is a combination all the nerve fibers that serve a specific body part and distributes nerve impulses to that body part.