Exam 20: Pregnancy: Development From Conception to Newborn

Describe how hormones trigger and participate in the three stages of labor.

Gender differentiation occurs at approximately:

Outline the function of the three germ layers in the embryo.

Which description would be correct for the arrow labeled A?

Which layer of the egg contains species-specific receptors for the sperm?

The ____________ provides the starting material for the blood vessels of the umbilical cord.

As the zygote travels down uterine tubes it undergoes the process of

Which would be an accurate description of the step labeled 5?

What is labeled A in this diagram?

By the end of the ______ trimester, the skeleton is starting to ossify.

What indication below signifies the fetus has dropped?

The placenta develops from the chorion, the outermost of the extraembryonic membranes.

Some of the mesoderm is destined to become:

The first substance to be produced by the mammary glands is a watery substance rich in proteins and antibodies called _____________.

The epidermis of the skin comes from which embryonic layer?

During in vitro fertilization,:

The embryonic period lasts from fertilization through the _______ week of development.

A ____________ is a photomicrograph arranged to show the chromosome pairs.