Which of the following is one of the critical events of the first trimester?
A)cleavage
B)implantation
C)placentation
D)embryogenesis
E)All of the answers are correct.

Question

Quizplus · Accepted Answer

All of the given events are critical to the first trimester of pregnancy. Cleavage is the process of cell division that occurs immediately after fertilization, resulting in the formation of the zygote. Implantation is the attachment of the blastocyst to the uterine wall. Placentation refers to the formation of the placenta, which is a critical organ for the exchange of nutrients and waste products between the mother and the developing embryo. Embryogenesis is the process of embryonic development that occurs during the first eight weeks of pregnancy, during which time the major organs and structures of the body begin to form.

Which of the Following Is One of the Critical Events