To discuss:
The mode of trophoblastic nutrition; what the trophoblast digest for its nourishment at this stage; the developmental age at which this yields to the placenta as the dominant mode of nutrition; and the age at which it ends entirely.
Introduction:
A single cell–fertilized egg is transformed into a fully developed and independent individual. It is a miraculous and one of the most important aspects of human life. Embryology is a branch of science that deals with the study of prenatal development. Now, embryology is a part of developmental biology. The developmental biology deals with the changes that occur during development as well as the functions of a fertilized egg from fertilization to old age.
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Anatomy & Physiology: The Unity of Form and Function
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