- ventral vessel
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(ANNELIDA: Oligochaeta)
Online Dictionary of Invertebrate Zoology. A.R. Maggenti and S.L. Gardne. 2005.
ventral vessel
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Dorsal vessel — Dorsal Dor sal, a. [F. dorsal, LL. dorsalis, fr. L. dorsualis, fr. dorsum back; cf. Gr. ?, ?, mountain ridge. Cf. {Dorse}, {Dorsel}, {Dosel}.] 1. (Anat.) Pertaining to, or situated near, the back, or dorsum, of an animal or of one of its parts;… … The Collaborative International Dictionary of English
segmental blood vessel — (ANNELIDA) A blood vessel in the body wall, connecting anteriorly from dorsal to ventral arteries, and posteriorly by plexes around the gut … Dictionary of invertebrate zoology
circulation — circulable /serr kyeuh leuh beuhl/, adj. /serr kyeuh lay sheuhn/, n. 1. an act or instance of circulating, moving in a circle or circuit, or flowing. 2. the continuous movement of blood through the heart and blood vessels, which is maintained… … Universalium
annelid — /an l id/, n. 1. any segmented worm of the phylum Annelida, including the earthworms, leeches, and various marine forms. adj. 2. belonging or pertaining to the Annelida. Also, annelidan /euh nel i dn/. [1825 35; see ANNELIDA] * * * Any member of… … Universalium
Earthworm — Taxobox name = Earthworm image width = 250px image2 width = 250px image2 caption = Lumbricus terrestris, the Common European Earthworm regnum = Animalia phylum = Annelida classis = Oligochaeta ordo = Haplotaxida subordo = Lumbricina subdivision… … Wikipedia
Oligochaeta — This article is about the animal genus. For the plant genus, see Oligochaeta (plant). Oligochaeta Earthworm (Lumbricus terrestris) Scientific classification … Wikipedia
lateral commissures — 1. (ANNELIDA) Commissural blood vessels. Paired segmental lateral blood vessels from the dorsal vessel to anteriorly join the ventral vessel and more posteriorly, the sub neural vessel; when contractile, they are called lateral hearts or… … Dictionary of invertebrate zoology
commissural vessels — (ANNELIDA) Paired segmental lateral blood vessels from the dorsal vessel to anteriorly join the ventral vessel and more posteriorly, the sub neural vessel; when contractile, they are called lateral hearts or pseudohearts … Dictionary of invertebrate zoology
nervous system disease — Introduction any of the diseases or disorders that affect the functioning of the human nervous system (nervous system, human). Everything that humans sense, consider, and effect and all the unlearned reflexes of the body depend on the… … Universalium
Ramus — In anatomy, a branch, such as a branch of a blood vessel or nerve. For example, the ramus acetabularis arteriae circumflexae femoris medialis is the branch of an artery that goes to the socket of the hip joint. The plural of ramus is rami. * * *… … Medical dictionary
