Chapter 5 Section 1 Vocab

Front

What is the age of viability?

Back

The age at which a fetus can survive outside the womb, typically around 24-28 weeks of gestation.

Front

What is the amnion?

Back

A thin membrane forming a closed sac around the embryo or fetus, filled with amniotic fluid.

Front

What is a cell?

Back

The basic structural, functional, and biological unit of all living organisms.

Front

What is the cervix?

Back

The lower part of the uterus that opens into the vagina.

Front

What is the chorion?

Back

An outer fetal membrane that contributes to the formation of the placenta.

Front

What is conception?

Back

The process of fertilization where a sperm cell and an ovum combine to form a zygote.

Front

What is an embryo?

Back

An early stage of development in multicellular organisms, in humans, it refers to the stage from implantation to the 8th week of pregnancy.

Front

What is the embryonic stage?

Back

The stage of prenatal development from implantation to the 8th week, where major organs and structures begin to form.

Front

What are the fallopian tubes?

Back

The tubes that connect the ovaries to the uterus and where fertilization typically occurs.

Front

What is the fetal stage?

Back

The stage of prenatal development from the 9th week of pregnancy to birth, characterized by growth and maturation of the fetus.