ANATOMY

Detailed explanation-1: -The lumbar plexus is an essential collection of nerves that arise from mostly the lumbar spinal cord. The term plexus refers to a “web” of nerves that is created just lateral to where T12-L5 exit the spinal cord via intervertebral foramina.

Detailed explanation-2: -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.

Detailed explanation-3: -Spinal Plexus This plexus of nerves serves your chest, shoulder, and arms. The median, ulnar, and radial nerves-the three major nerves of your arm-originate from the brachial plexus.

Detailed explanation-4: -In neuroanatomy, a plexus (from the Latin term for “braid") is a branching network of vessels or nerves. The vessels may be blood vessels (veins, capillaries) or lymphatic vessels. The nerves are typically axons outside the central nervous system.

Detailed explanation-5: -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. Damage to nerves in a plexus will cause problems in the part that these nerves supply.