epineural sinus

epineural sinus
(ARTHROPODA: Insecta)
In embryology, the development of primary body cavity between the upper surface of the embryo and the yolk.

Online Dictionary of Invertebrate Zoology. . 2005.

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Look at other dictionaries:

  • sinus — A blood filled space on the venous side of the circulatory system [Warner, 1977]. Any space or cavity in body tissues; also, refers to broad concavity in margin of shell [Butler, T.H.]. (Order Notostraca): Posterior emargination of carapace;… …   Crustacea glossary

  • epineural canal — (ECHINODERMATA) A canal or sinus between each radial nerve and the epidermis …   Dictionary of invertebrate zoology

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