The human egg in the pronuclear stage
Article first published online: 3 FEB 2005
Copyright © 1965 Wiley-Liss, Inc.
The Anatomical Record
Volume 152, Issue 3, pages 293–302, July 1965
How to Cite
Dickmann, Z., Chewe, T. H., Bonney, W. A. and Noyes, R. W. (1965), The human egg in the pronuclear stage. Anat. Rec., 152: 293–302. doi: 10.1002/ar.1091520309
- Issue published online: 3 FEB 2005
- Article first published online: 3 FEB 2005
A human egg in the pronuclear stage was recovered by flushing the excised oviduct that had been removed along with the uterus. The hysterectomy and right salpingectomy were performed on day 16 of the patient's menstrual cycle. The egg was examined first in the fresh state and revealed two pronuclei, a granular zona pellucida, and corona cell processes traversing the zona pellucida. The egg was subsequently fixed and stained revealing further details of the pronuclei, and the tail of the fertilizing spermatozoon lying over one of the pronuclei.
The age of the egg was estimated as being 3 to 50 hours post ovulation time.