Plexus Anatomy

Another subepidermal plexus is located at the bases of the epithelial cells above the muscular layer. 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.

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The submuscular nerve plexusconsisting of sensory cells ganglion cells and their processesis situated in the loose tissue mesenchyme below the subepidermal musculature.

Plexus anatomy. In this article we shall look at the anatomy of the lumbar plexus its formation and major branches. The sacral plexus has extensive functions throughout the pelvis and legs. There are five spinal nerve plexuses except in the thoracic region as well as other forms of autonomic plexuses many of which are a part of the enteric nervous system.

The plexus is formed by the anterior rami divisions of the lumbar spinal nerves l1 l2 l3 and l4. The left and right cervical plexi are symmetrical and should be exactly the same. The celiac plexus consists of celiac superior mesenteric and renal ganglia found surrounding the roots of the celiac trunk superior mesenteric and renal arteries.

You have two cervical plexione on the left and one on the right. For their paraaortic location these ganglia are also called prevertebral paraaortic ganglia. The sacral plexus or parts of the sacral plexus can be affected by.

An overview of the sacral plexus anatomy. It also receives contributions from thoracic spinal nerve 12. The sacral plexus is formed by the lowest lumbar spinal nerves l4 and l5.

The cervical plexus includes six large nerves that divide into smaller branches.

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