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

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

(neuroanatomy) A plexus formed by branches of the glossopharyngeal, vagus, and sympathetic nerves supplying the muscles and mucous membrane of the pharynx and adjoining parts.

(neuroanatomy) A nerve plexus of the middle ear that is formed by the tympanic nerve and two or three filaments from the carotid plexus, sends fibers to the mucous membranes of the middle ear, the eustachian tube, and the mastoid cells, and gives off the lesser petrosal nerve to the otic ganglion.

(neuroanatomy) Synonym of internal carotid plexus.

(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.

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

obsolete typography of coeliac plexus