File:Human pronuclear stage EM21.jpg

From Embryology

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Human Pronuclear Stage

  • Higher magnification of the sperm structures shown in Fig. 19.
  • The outer row of nine dense fibers and the axial filament complex are easily recognized.

X 55,000.

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


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


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current00:08, 24 February 2012Thumbnail for version as of 00:08, 24 February 2012366 × 587 (58 KB)Z8600021 (talk | contribs)==Human Pronuclear Stage== * Region of the penetrated human ovum with male and female pronuclei (PN). * The pronuclear material appears to be highly hydrated, although zonally condensed in patchy aggregates. * Nucleoli (n) and intrapronuclear annulate

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