CHAIRMAN OF THE BOARD FOR THE EXAMINATION OF MIDWIVES. The vein which joins the duct of Cuvier in the neighbourhood of the heart comes mostly from the right aspect of the head over the forebrain, and may represent an external jugular vein.
The neural canal begins to dilate as soon as the neural ridges fold to form it.
105 very thick wall, a minute cavity communicating witli the auricle by an opening 2 mm. The ven- tricle lies within a serous sac, the pericardium.
The ventricle has a TWO ACAEDIAC ACEPHALIC F(ETUSES.
It is not an easy matter to identify the trunks of the venous system (Plate XI).
In the smaller foetus the heart and cephalic arteries were absent.