General information on embryology, Cleavage

I. Embryonic Development

a. Definition, History, Embryological Techniques, Terminology,

b. Pre-embryonic

c. Embryonic

II. Primordial Morphogenesis (Morula - Early Gastrula) 2nd, 3rd Week

III. Secondary morphogenesis (Gastrula) 4th week

IV. Longitudinal and transverse demarcations (Transformation of the flat tridermal embryonic disc into a C-shaped cylindrical structure)

V. Neurulation and delimitation of the cephalic end

VI. Establishment of the heart and vascular system of the embryo

VII. Morphogenesis of the caudal region

VIII. Embryonic appendages: umbilical cord, membranes, placenta

IX. Definitive morphogenesis

X. Morphogenetic mechanisms

XI. Comparative and evolutionary embryology