Describe how you were able to tell by observation when a sea urchin egg was fertilized
What is the importance of cleavage in embryonic development?
How is cleavage different from mitotic cell division, which occurs later in life?
An embryonic membrane that provides the structural basis for the body stalk or umbilical cord
Explain the process and importance of gastrulation
What is the functionof the amnionand the amniotic fluid?
Describe the process of implantation, noting the role of the tropoblast cells
What event in the female menstrual cycle ordinarily occurs around mid cycle if implantation does not occur
What name is given to the part of the uterine wall directly under the implanting embryo? What is surrounding the rest of the embryonic structure?
How is the term "deciduas" applied to pregnancy?
Which two organ systems are extensively developed in the very young embryo?
Does bodily control during infancy develop in the same direction? Think! Can an infant pick up a common pin (pincer grasp) or wave his arms earlier? is arm-hand or leg-foot control achieved earlier?
Describe the functions of the placenta
What embryonic membranes has the placenta more or less "put out of business"?
What is the usual and most desirable fetal position in utero? Why is this the most desirable position?
Describe the gross structure of the human placenta