Vesicle
61otic vesicle. — See auditory vesicle. * * * …
62optic vesicle — (Order Cladocera): Protuberance of outer wall of head whose cavity encloses compound eye. Optic vesicle does not communicate with exterior via pore. (touching/not touching margin of head) [Stachowitsch, 1992]. (Order Diplostraca): Compound eye… …
63allantoic vesicle — n the cavity of the allantois * * * see under diverticulum …
64blastodermic vesicle — blas·to·derm·ic vesicle .blas tə .dər mik n BLASTOCYST * * * blastocyst …
65brain vesicle — n any of the divisions into which the developing embryonic brain of vertebrates is marked off by incomplete transverse constrictions …
66germinal vesicle — n the enlarged nucleus of the egg before completion of meiosis * * * the nucleus of a mature oocyte, prior to fertilization. It is considerably larger than the nucleus of other cells. * * * the fluid filled nucleus of an oocyte toward the end of… …
67optic vesicle — n an evagination of each lateral wall of the embryonic vertebrate forebrain from which the nervous structures of the eye develop …
68seminal vesicle — n either of a pair of glandular pouches that lie one on either side of the male reproductive tract and that in human males secrete a sugar and protein containing fluid into the ejaculatory duct * * * either of a pair of male accessory sex glands… …
69umbilical vesicle — n the yolk sac of a mammalian embryo usu. having the form of a fluid filled pouch, corresponding to the yolk sac of an oviparous vertebrate, and having a transitory connection with the alimentary canal by way of the omphalomesenteric duct * * *… …
70seminal vesicle calculus — a rare type of calculus found in a seminal vesicle, usually resulting from obstruction or infection. Called also gonecystic c …
