PLEXUS

(Lat. woven.) In Anatomy, the term is substantively applied to those portions of nerves which interweave and interchange fasciculi, appearing to anastomose with each other, as, e.g., in the arm-pit, forming the "axillary" or "brachial plexus," and in the loins, forming the " lumbar plexus." As nerves approach their final distribution in the several ti ues, the minute fibres commonly form delicate plexuses, called the " terminal plexuses." [s. 1410]