Lab 10: First Week and 2nd Week Changes (PDF)
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Menoufia National University
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Summary
This document provides an overview of the first two weeks of human development, including topics such as ovulation, fertilization, cleavage, and implantation. It discusses the various stages and processes involved in these key developmental steps. Diagrams are included to illustrate the concepts.
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Lab 10 First week and 2nd week changes Ovulation cycle Fertilization Cleavage and Blastocyst formation Implantation 2nd week events Complete implantation of blastocyst - anterior or posterior wall of uterine corpus Embryoblast has 2 layers(bilaminar ge...
Lab 10 First week and 2nd week changes Ovulation cycle Fertilization Cleavage and Blastocyst formation Implantation 2nd week events Complete implantation of blastocyst - anterior or posterior wall of uterine corpus Embryoblast has 2 layers(bilaminar germ disc) - epiblast, hypoblast Trophoblast consists of 2 layers - cytotrophoblast, syncytiotrophoblast 2 cavities formed - amniotic cavity, yolk sac, extraembryonic coelomic cavity (chorionic cavity) 2 layers of extraembryonic mesoderm - somatopleure, splanchnopleure Start of uteroplacental circulation Activity Illustrate with diagram graafian follicle structure.
