Atlas of the Development of Man 1 - Part 1

From Embryology
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Historic Textbook - Atlas of the Development of Man Volume 1 (1907)

(Handatlas der entwicklungsgeschichte des menschen: Volume 1)
Kollmann Atlas 1: Predevelopment | Ontogeny | Fetal membranes | Body shape | Systems and organs | Kollmann Atlas 1 | Kollmann Atlas 2 | Julius Kollmann
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Pages where the terms "Historic" (textbooks, papers, people, recommendations) appear on this site, and sections within pages where this disclaimer appears, indicate that the content and scientific understanding are specific to the time of publication. This means that while some scientific descriptions are still accurate, the terminology and interpretation of the developmental mechanisms reflect the understanding at the time of original publication and those of the preceding periods, these terms, interpretations and recommendations may not reflect our current scientific understanding.     (More? Embryology History | Historic Embryology Papers)
This text is a Google translate computer generated translation and may contain many errors.


Kollmann Atlas 1: Predevelopment | Ontogeny | Fetal membranes | Body shape | Systems and organs | Kollmann Atlas 1 | Kollmann Atlas 2 | Julius Kollmann

I. The egg

The egg is one cell organized for the preservation of the species.

Every living being develops from a seed, in the vast number of animals and plants is a simple cell. Even the ride of the human female egg it one of the Plierstock to cell uncoupling. Everyone knows that the chicken develops from an egg, that fish and frogs from the spawn and the frog eggs emerge, but not generally known is that these eggs have the same value as mammalian cells and that man arises from the same grand cells. In order to accept a certain number of changes their shape. so closely related to the starting point, and yet the goal of each different forms of development indefinitely.

The egg comes from the human Graafian follicle the egg pieces. The eggs of mammals is a sphere of about 2mm size. The egg has the following structure:

A soft cover, 14 thick, the egg membrane, zona pellucida, they encloses:

  1. The yolk, Vitellus, in the same
  2. The germinal vesicle, vesicula germinativa, 37 size, and is the germinal spot. Germinativa macula.

The figure below is a human egg from the ovary. Comes from such a small egg, the whole nature of man, in all material and immaterial qualities forth. It has no resemblance to the skilled nature. Even the strongest magnification show absolutely nothing on the later form might suggest.

Structural unit yolk-rich egg (bird's egg)

II. maturation the egg

III. Fertilization

VI. Site of fertilisation

a) Place of fertilization and pregnancy theories

b) durability and resistance of the spermatozoa

c) ovulation

d) Detachment of the egg from the ovary, and the walk through the tubes

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Cite this page: Hill, M.A. (2020, October 20) Embryology Atlas of the Development of Man 1 - Part 1. Retrieved from

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© Dr Mark Hill 2020, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G