Pregnancy, Growth & Development (Day 1)

Pregnancy, Growth & Development

Day 1

Objectives

• Distinguish between the prenatal and postnatal periods

• Describe the process of fertilization resulting in pregnancy

• Distinguish between an embryo and a fetus

• Describe the major events of the embryonic stage of develpment

Multiple Choice

The combining of egg and sperm cell chromosomes

• fertilization

• implantation

• cleavage

• labor

Multiple Choice

The condition characterized by the presence of a developing embryo within the uterus is called:

• emission

• haploid

• pregnancy

• fertilization

Multiple Choice

A human zygote contains _____ chromosomes

• 23

• 46

• 32

• 64

Multiple Choice

Pregnancy can be diagnosed ten days after fertilization by testing the urine of a women for which of the following substances?

• Estrogen

• Human chorionic hormone (hCG)

• Progesterone

• Amniotic fluid

Multiple Choice

From which of the layers of the embryonic disc do hair, nails and glands of the skin arise?

• Endoderm

• Mesoderm

• Ectoderm

Multiple Choice

In the embryo, blood cells are formed in the:

• Amnion

• Placenta

• Allantois and yolk sac

Multiple Choice

The fetal stage of development begins at the end of the:

• Second week

• Fourth week

• Eighth week

• Tenth week