Reproductive System Review

Front

What type of twins are formed when one zygote splits into two embryos?

Back

Identical twins are formed from one zygote splitting into two embryos.

Front

What is the number of chromosomes in sex cells (egg and sperm) compared to normal human body cells?

Back

The number of chromosomes in sex cells is half the number of chromosomes in normal human body cells.

Front

What is the term for the series of muscle contractions in the uterus that help push the baby through the birth canal?

Back

Labor is the term for the series of muscle contractions that help push the baby through the birth canal.

Front

What is the exchange organ that allows the embryo and mother to exchange materials?

Back

The placenta is the exchange organ that allows the embryo and mother to exchange materials such as nutrients and waste.

Front

How long does a 'normal' pregnancy usually last?

Back

A 'normal' pregnancy usually lasts about 40 weeks.

Front

What is the role of the placenta during pregnancy?

Back

The placenta provides nutrients and oxygen to the growing baby and removes waste products.

Front

What are fraternal twins?

Back

Fraternal twins are twins that develop from two separate eggs fertilized by two separate sperm cells.

Front

What is the function of the uterus?

Back

The uterus is the organ where a fertilized egg implants and develops into a fetus during pregnancy.

Front

What is fertilization?

Back

Fertilization is the process where a sperm cell joins with an egg cell to form a zygote.

Front

What is the difference between identical and fraternal twins?

Back

Identical twins come from one zygote that splits, while fraternal twins come from two separate eggs fertilized by two separate sperm.