ventral
71ventral plate — (ARTHROPODA: Insecta) 1. In embryology, a layer of columnar cells of the blastoderm on the ventral side of the egg. 2. In Diptera, the floor of the cibarium …
72ventral sinus — (ARTHROPODA: Insecta) The space of the body cavity below the ventral diaphragm, containing the nerve cord; the perineural sinus …
73ventral sympathetic nervous system — (ARTHROPODA: Insecta) A pair of transverse nerves associated with the ganglia of the ventral nerve cord in each segment, passing to the spiracles of their segment; may be connected to the perisympathetic system …
74ventral vessel — (ANNELIDA: Oligochaeta) A major blood vessel found in the mesentery ventral to the alimentary canal …
75ventral tegmental area — noun The ventral tegmentum …
76Ventral (anatomic orientation) — Pertaining to the abdomen, as opposed to dorsal. Some of the ventral surfaces of the body are the chest, abdomen, shins, and palms of the hands. For a more complete listing of terms used in medicine for spatial orientation, please see the entry… …
77ventral comb — (Class Cephalocarida): Row of setae or bristles on posteroventral margin of last abdominal somite or telson [McLaughlin, 1980]. (Class Cephalocarida): Transverse series of ventral setae on telson (longer setae) and, in most cephalocarids, on… …
78ventral ganglion — (Order Decapoda): One in a series of ganglion pairs of ventral nerve cord in thorax (thoracic ganglion) or abdomen (abdominal ganglion). Segmentally arranged, each giving rise to pair of nerves. Ganglion pairs may shift anteriorly and be fused… …
79ventral nerve chain — Ganglia or connectives on somites joined by single or double nerve cord running longitudinally beneath alimentary canal [Moore and McCormick, 1969]. See: ventral nerve cord [McLaughlin, 1980]. (Order Tanaidacea): Longitudinal nerve cord extending …
80ventral sinus — (Order Amphipoda): In circulatory system, large ventral space below digestive tract in which blood collects before entering appendages and gills. (Syn. sternal sinus) [Stachowitsch, 1992] …
