File:Human pronuclear stage EM29.jpg
Original file (967 × 763 pixels, file size: 183 KB, MIME type: image/jpeg)
Human Pronuclear Stage - Second Polar Body
- The second polar body (PB2) has a spheroidal nucleus consisting of dense chromatin aggregates and a highly hydrated nucleoplasm.
- A double nuclear membrane is present. The lamellar structures (*) embedded in the chromatin clumps may represent either nuclear annulate lamellae or the chromosomal axial complex.
- The lamella toward the left of the micrograph is shown at higher magnification in the insert. Note the regressive changes of the mitochondria.
Fig. 29, X 15,000. Inset, X 114,000.
- Pronuclear Stage EM: | Human pronuclei | Human pronuclei | Mitochondria | Mitochondria | Endoplasmic Reticulum | Endoplasmic Reticulum | Endoplasmic Reticulum | Cytoplasmic LameIlae | Cytoplasmic LameIlae | Crystalline inclusions | Crystalline inclusion | Pronuclear Envelope | Pronuclei Annulate Lamellae | Pronucleus | Nucleoli | Spermatozoon | Human pronuclei | Spermatozoon Components | Golgi complex | First Polar Body | First Polar Body | First Polar Body | Second Polar Body | Second Polar Body | pronuclei | polar body | fertilization | Carnegie stage 1
Reference
Zamboni L, Mishell DR, Bell JH & Baca M. (1966). Fine structure of the human ovum in the pronuclear stage. J. Cell Biol. , 30, 579-600. PMID: 6008199
Copyright
Rockefeller University Press - Copyright Policy This article is distributed under the terms of an Attribution–Noncommercial–Share Alike–No Mirror Sites license for the first six months after the publication date (see http://www.jcb.org/misc/terms.shtml). After six months it is available under a Creative Commons License (Attribution–Noncommercial–Share Alike 4.0 Unported license, as described at https://creativecommons.org/licenses/by-nc-sa/4.0/ ). (More? Help:Copyright Tutorial)
Image has been scaled, rotated and contrast adjusted.
File history
Click on a date/time to view the file as it appeared at that time.
Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 00:10, 24 February 2012 | 967 × 763 (183 KB) | Z8600021 (talk | contribs) |
You cannot overwrite this file.
File usage
The following 3 pages use this file: