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On the Growth, Development, and Situation of the Human Fœtal Heart
Published online by Cambridge University Press: 15 September 2014
Extract
The earliest condition of the embryonic vascular system, as described by Wagner and other embryologists, consists of a venovascular chain of sinuses along the ventral surface of the serous or animal lamina of the embryonic germ disc, which, being suddenly arrested by a large projection of the germ vesicle at the anterior part beyond the vascular and mucous lamina, causes a stagnation in the form of a conical sac, whose apex points forward below the head of the embryo at that time consisting of the mesocrane and procrane, with the visceral segments of the face-kist, and exhibiting three facial clefts.
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- Proceedings 1868-69
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- Copyright © Royal Society of Edinburgh 1869