(anatomy) A network of anastomosing or interwoven nerves, blood vessels, or lymphatic vessels. / An interwoven combination of parts or elements in a structure or system.

A plexus of nerves situated at the base of the heart that innervate the heart.

(anatomy) A complex network of nerves and ganglia, located within the abdomen behind the stomach.

(anatomy) A network of nerves formed by the anterior rami of the cervical nerves C5–C8 and first thoracic nerve (T1).

(neuroanatomy) A plexus formed by the anterior divisions of the four upper cervical nerves.

(anatomy) A nerve that accompanies the inferior phrenic artery to the diaphragm, with some filaments passing to the suprarenal gland.

(anatomy) A complex network of nerves located in the abdomen, near where the celiac trunk, superior mesenteric artery, and renal arteries branch from the abdominal aorta.

obsolete typography of coeliac plexus

(anatomy) A plexus of superficial tangential nerve fibers in the molecular layer of the cerebral cortex.

(neuroanatomy) Synonym of internal carotid plexus.