commissural vessels


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.

Online Dictionary of Invertebrate Zoology. . 2005.

Look at other dictionaries:

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  • pseudoheart — n. [Gr. pseudos, false; A.S. heorte, heart] 1. (ANNELIDA) see commissural vessels. 2. (ECHINODERMATA) The axial gland …   Dictionary of invertebrate zoology

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  • 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


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