germinal vesicle


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vesicle

 [ves´ĭ-k'l]
1. a small bladder or sac containing liquid.
2. a small circumscribed elevation of the epidermis containing a serous fluid; a small blister.
allantoic vesicle the internal hollow portion of the allantois.
auditory vesicle a detached ovoid sac formed by closure of the auditory pit in the early embryo, from which the percipient parts of the inner ear develop.
brain v's the five divisions of the closed neural tube in the developing embryo, including the telencephalon, diencephalon, mesencephalon, metencephalon, and myelencephalon.
brain v's, primary the three earlier subdivisions of the embryonic neural tube, including the forebrain, midbrain, and hindbrain.
brain v's, secondary the four brain vesicles formed by specialization of the forebrain and of the hindbrain in later embryonic development.
chorionic vesicle the chorion of a mammal.
encephalic v's brain vesicles.
germinal vesicle the fluid-filled nucleus of an oocyte toward the end of prophase of its meiotic division.
lens vesicle a vesicle formed from the lens pit of the embryo, developing into the crystalline lens.
olfactory vesicle
1. the vesicle in the embryo that later develops into the olfactory bulb and tract.
2. a bulbous expansion at the distal end of an olfactory cell, from which the olfactory hairs project.
optic vesicle an evagination on either side of the forebrain of the early embryo, from which the percipient parts of the eye develop.
otic vesicle auditory vesicle.
seminal vesicle paired sacculated pouches attached to the posterior urinary bladder; the duct of each joins the ipsilateral ductus deferens to form the ejaculatory duct.
umbilical vesicle the pear-shaped expansion of the yolk sac growing out into the cavity of the chorion, joined to the midgut by the yolk stalk.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

ger·mi·nal ves·i·cle

archaic term for the nucleus of the oocyte.
Farlex Partner Medical Dictionary © Farlex 2012

germinal vesicle

n.
The enlarged nucleus of an oocyte before meiotic division is completed.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

germinal vesicle

The nucleus of an ovum.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

germinal vesicle

the meiotic PROPHASE nucleus of the oocyte during the growth of the cytoplasm in animals.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005
References in periodicals archive ?
The effect of progesterone on the in vitro maturation and developmental competence of mouse germinal vesicle oocytes.
Time-lapse cinematography study of the germinal vesicle behaviour in mouse primary oocytes treated with activators of protein kinases A and C.
Photomicrographs of the female reproductive system of Megamelus scutellaris showing a) close-up of the distal portion of an ovariole showing the anterior lateral oviduct (loa), follicular epithelium (fe), ovariole sheath (os), germinal vesicle (gv), oocyte with yolk (oy), and collar (c), and b) distal portion of an ovariole showing a newly ovulated egg (e) into the anterior lateral oviduct (loa), ovary (ov), ovariole (lov), and the collar (c).
Does cryopreservation of ovarian tissue affect the distribution and function of germinal vesicle oocytes mitochondria?
(Table 2 in 2011) CA=cortical alveolar; GVM=germinal vesicle migration; GVBD= germinal vesicle breakdown; NA=not applicable; OM=oocyte maturation; POF=postovulatory follicle; SC *=spawning capable, actively spawning subphase; Vtgl=primary vitellogenic; Vtg2=secondary vitellogenic; Vtg3=tertiary vitellogenic.
Chromosome and spindle configurations of human oocytes matured in vitro after cryopreservation at the germinal vesicle stage.
Inositol trisphosphate, inositol phospholipid metabolism, and germinal vesicle breakdown in surf clam oocytes.
The size of the mass was measured to the nearest micrometer, and the number of separate entities per mass was assessed using the clearly visible germinal vesicle as a reference.
Nevertheless, when maturation was evaluated by meiosis development, for each heat shock treatment (HS1, HS2), greatest number of oocytes was not progressing to MetaphaseII (MII), and most of them got arrested in the stages between germinal vesicle breakdown (GVBD) and Telophase I (Table 4).
GV, germinal vesicle; GVBD, germinal vesicle breakdown M-I, metaphase-I; Anaph.
The nucleus of the oocyte, commonly known as germinal vesicle, appears as a clear and spherical vesicle located at the anterior pole of the oocyte and containing few granules stained by hematoxylin (Figures.