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=Two Early Human Embryos=


By W.R.M.Morton
Department of Anatomy, Queen's University, Belfast
The two embryos described here were given to me by Prof. J. H. Biggart, who had recovered them from curettage material removed by Prof. C. H. G. Macafee; I have named the older specimen the Biggart Ovum and the younger the Macafee Ovum. The material was fixed in formol-saline and later transferred to formol-Zenker; it was embedded in paraffin, cut at 6 µm and stained with haematoxylin and eosin.
==The Biggart Ovum==
The Biggart ovum was recovered from a woman aged 24 years; married 7 years; one child 4 years 8 months; no miscarriages; menstruation began at 15, 7-day loss recurring very regularly every 21 days; last menstruation stated to have ended 29 June; admitted to hospital 12 July and curetted 16 July; coitus said to have occurred only once between the end of menstruation and admission, probably on 2 July and certainly between 1 and 5 July.
The specimen consists of a piece of endometrium in which the ovum is very superficially implanted (P1.1, fig.1). Examination shows the preservation to be good and that only some peripheral villous material and one section containing embryonic material proper  are missing; but some of the sections are a little distorted. It was found to be cut almost vertically to the embryonic shield and obliquely at 138 to its sagittal plane. The primary measurements in millimetres of the ovum and its parts areas follows.





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Morton, W. R. M. 1949. Two early human embryos. J. Anat., 83, 308-314.

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Two Early Human Embryos

By W.R.M.Morton

Department of Anatomy, Queen's University, Belfast

The two embryos described here were given to me by Prof. J. H. Biggart, who had recovered them from curettage material removed by Prof. C. H. G. Macafee; I have named the older specimen the Biggart Ovum and the younger the Macafee Ovum. The material was fixed in formol-saline and later transferred to formol-Zenker; it was embedded in paraffin, cut at 6 µm and stained with haematoxylin and eosin.


The Biggart Ovum

The Biggart ovum was recovered from a woman aged 24 years; married 7 years; one child 4 years 8 months; no miscarriages; menstruation began at 15, 7-day loss recurring very regularly every 21 days; last menstruation stated to have ended 29 June; admitted to hospital 12 July and curetted 16 July; coitus said to have occurred only once between the end of menstruation and admission, probably on 2 July and certainly between 1 and 5 July.


The specimen consists of a piece of endometrium in which the ovum is very superficially implanted (P1.1, fig.1). Examination shows the preservation to be good and that only some peripheral villous material and one section containing embryonic material proper are missing; but some of the sections are a little distorted. It was found to be cut almost vertically to the embryonic shield and obliquely at 138 to its sagittal plane. The primary measurements in millimetres of the ovum and its parts areas follows.




Cite this page: Hill, M.A. (2024, March 29) Embryology Paper - Two Early Human Embryos. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/Paper_-_Two_Early_Human_Embryos

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