File:Bonnot1906 fig02.jpg

From Embryology

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Fig. 2. From a photograph of the left side of the model

Showing the cervical, thoracic, and abdominal viscera, as well as the large blood vessels. In the lower part of the model, a portion of the external body wall including the lower extremity and tail, is shown.


The original model is forty-seven centimeters high, being reconstructed with an enlargement of seventy-five diameters. For convenience, the model is made in two segments, the plane of division passing horizontally through the liver.

Explanation

A ascending aorta.

a dorsal aorta.

a‘ left aortic arch.

ac anterior cardinal vein (sinus-like dilatation).

c caecum, not marked externally, though its cavity is distinct internally.

co colon.

d ductus Cuvier.

hl hind limb.

l lung.

L liver.

la left auricle.

lv left ventricle.

m mesentery.

pa posterior cardinal vein.

ph pharynx.

s somite (external surface).

so anlage of sexual gland.

sc origin of subclavian artery.

sr suprarenal body (slightly visible).

ta tail.

th thymus, including the main gland and also the smaller “nodulus thymicus”.

tl lateral anlage of the thyroid gland, located between the fourth and fifth branehial arterial arches.

tm, median thyroid anlage.

u umbilical vein.

w Wolffian body.

x quadrangular window cut through the thick-walled great omentum into the bursa omentalis. The anlage of the imperfectly differentiated spleen lies in the oiuental wall just behind this window. Internal to the omentum lies the stomach (visible through the window in the original model, though not in the photograph).

ys yolk stalk, out near attachment to intestinal loop.


Stage 16 Links: Week 6 | Head | Lecture - Limb | Lecture - Gastrointestinal | Lecture - Head Development | Science Practical - Gastrointestinal | Science Practical - Head | Carnegie Embryos | Category:Carnegie Stage 16 | Week 6 | Next Stage 17
  Historic Papers: 1906 | 1908 | 1948 stages 15-18


Week: 1 2 3 4 5 6 7 8
Carnegie stage: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23


Reference

Bonnet E. and Severs R. On the structure of a human embryo eleven millimeters in length. (1906) Anat. Anz., 29: 452-459.


Cite this page: Hill, M.A. (2024, June 17) Embryology Bonnot1906 fig02.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Bonnot1906_fig02.jpg

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© Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G

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