Name the major nerves that serve the following body areas

Qnerve plexus is a plexus (branching network) of intersecting nerves. 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. 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 nerves that arise from the plexuses have both sensory and motor functions. These functions include muscle contraction, the maintenance of body coordination and control, and the reaction to sensations such as heat, cold, pain, and pressure. There are several plexuses in the body, including:

Spinal Plexuses

Cervical plexus - serves the head, neck and shoulders

Brachial plexus - serves the chest, shoulders, arms and hands

Lumbar plexus - serves the back, abdomen, groin, thighs, knees, and calves

Sacral plexus - serves the pelvis, buttocks, genitals, thighs, calves, and feet

Coccygeal plexus - serves a small region over the coccyx

Autonomic Plexuses

Celiac plexus (solar plexus) - serves internal organs

Auerbach's plexus (myenteric plexus) - serves the gastrointestinal tract

Meissner's plexus (submucosal plexus) - serves the gastrointestinal tract

Pharyngeal plexus of vagus nerve - serves the palate and pharynx

Cardiac plexus - serves the heart

Nerve plexus

Superimposed image of the spinal plexuses on a human back.

biceps, also biceps brachii (Latin for "two-headed muscle of the arm"), is a large muscle that lies on the front of the upper arm between the shoulder and the elbow. Both heads of the muscle arise on the scapula and join to form a single muscle belly which is attached to the upper forearm. While the biceps crosses both the shoulder and elbow joints, its main function is at the elbow where it flexes the forearm and supinates the forearm. Both these movements are used when opening a bottle with a corkscrew: first biceps unscrews the cork (supination), then it pulls the cork out (flexion