Student Copy of The Human Life Cycle

Multiple Choice

Which of the following changes occur during weeks 5-8 of the first trimester?

• Development of major organs and formation of limbs

• Fertilization and implantation

• Growth of fingernails and ability to swallow

• Morning sickness and mood swings

Multiple Choice

The blastocyst attaches to the ___ and begins developing into a fetus.

• Endometrium

• Placenta

• Fallopian tube

• Ovary

Multiple Select

Which of the following are functions of the amniotic sac?

• Protects the fetus from injury

• Regulates fetal temperature

• Supplies nutrients to the fetus

• Contains amniotic fluid

Multiple Choice

What is an ectopic pregnancy?

• A pregnancy where the embryo implants in the uterus

• A pregnancy where the fertilized egg implants outside the uterus

• A pregnancy that ends in miscarriage

• A pregnancy with chromosomal abnormalities

Multiple Choice

During which weeks does the developing baby transition from being called an embryo to a fetus?

• Weeks 1-4

• Weeks 5-7

• Weeks 8-10

• Weeks 11-13

Open Ended

Describe the major changes that occur in the fetus during the second trimester.

Multiple Choice

A fertilized egg develops in the

• the cervix

• the uterus

• an ovary

• the vagina

Match

Match the following terms to their definitions

• Childbirth

• Latent phase

• Stage 1

• Stage 2

• Stage 3

The end of the gestation period

Before official labor begins

Uterus begins contractions

Contractions force the baby out through the vagina

The placenta is delivered

• The end of the gestation period

• Before official labor begins

• Uterus begins contractions

• Contractions force the baby out through the vagina

• The placenta is delivered

Match

Match the following

• fertilization occurs here

• egg is released

• fetus grows here

• opening of uterus

• provides fetus with nutrients

oviduct

ovulation

uterus

cervix

placenta

• oviduct

• ovulation

• uterus

• cervix

• placenta

Multiple Choice

What is the function of A & B?

• A - transport gametes (eggs)

  B - Produce eggs

• A - produce eggs

  B - transport gametes (eggs)

• A - transport gametes (sperm)

  B - produce sperm

• A - produce sperm

  B - transport gametes (sperm)

Multiple Choice

How many trimesters are there in a typical human pregnancy?

• Two

• Three

• Four

• Five

Multiple Choice

What are the three trimesters of pregnancy and what is the typical duration of each?

• First trimester (6-12 weeks), Second trimester (13-28 weeks), Third trimester (29-40 weeks)

• First trimester (1-10 weeks), Second trimester (11-20 weeks), Third trimester (21-30 weeks)

• First trimester (1-8 weeks), Second trimester (9-16 weeks), Third trimester (17-24 weeks)

• First trimester (10-20 weeks), Second trimester (21-30 weeks), Third trimester (31-40 weeks)

Open Ended

What are two main roles of the placenta during pregnancy?

Open Ended

Why is understanding the human life cycle important for our knowledge of health and development?