File:Human pronuclear stage EM02.jpg

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 lamellae (led) are evident.

• Note the numerous organelles which populate the cytoplasm adjacent to the pronuclei

• Golgi complex (c)

X 5,400.

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

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Human pronuclear stage EM02.jpg