Flash Cards for Chapter 8 Development

The process involving the following stages (cleavage, differentiation, morphogenesis and growth) that a single fertilized egg undergoes to become a complex human being is called _______

Opening between the left and right atria which exists during fetal life

During the formation of an embryo this stage is marked by a solid ball of cells with a hollow cavity inside

First stage of embryonic development

During this time of development, males and females are indistinguishable

This process refers to the shaping of the embryo and involves cell migration

Male/female gender of the fetus can be accurately determined as soon as what month?

By the end of this month, all major organs have appeared in the fetus

This hormone maintains the endometrial lining during early pregnancy and also maintains the corpus luteum till placenta develops.

Name given to the thin, yellow, milky protein rich fluid secreted during the first few days following birth.

This hormone is produced by the placenta and is the basis for pregnancy tests.

This extra embryonic membrane providses a fluid environment for the developing embryo.

This hormone directly stimulates lactation and the contraction of the uterine smooth muscles. A synthetic version can also be administered to begin the process of childbirth.

The earliest embryonic stage

The process of giving birth to an offspring is called