Reproductive System

Term Definition
cell the basic unit of living things that is self-sufficient
tissue a group of similar cells that perform the same function
organ a structure in the body that is composed of different kinds of tissue
organ System a group of organs that work together to perform a major function in the body
fertilization the joining of a sperm and an egg
zygote a fertilized egg, produced by the joining of a sperm and an egg.
testosterone a hormone produced by the testes that controls the development of physical characteristics in the mature male
semen a mixture of sperm and fluids
estrogen a hormone produced by the ovaries that controls the development of eggs and female characteristics
menstrual cycle the cycle of changes that occurs in the female reproductive system, during which an egg develops and the uterus prepares for the arrival of a fertilized egg.
ovulation the process by which a mature egg is released from the ovary into the fallopian tube.
menstruation the process in which the thickened lining of the uterus breaks down, and blood and tissue then passes out of the females body.
Pregnancy the period of time during which a female organism is carrying a developing embryo/fetus (baby) inside of her body
Amniotic sac the fluid-filled sac that contains and protects a embryo/fetus (baby) in the womb.
Sterile or Infertile unable to reproduce.
Chromosomes a DNA molecule with part or all of the genetic material (DNA) of an organism.
offspring young produced by sexual or asexual reproduction
embryo early stage of development in organisms that reproduce sexually, an embryo develops from a zygote,
umbilical cord a flexible cordlike structure containing blood vessels that connects the mammal embryo/fetus to the placenta during gestation.
DNA deoxyribonucleic acid /genetic material that carries information about an organism and is passed from one generation to the next
fetus an unborn or unhatched vertebrate after attaining the basic structural plan of its kind. follows the embryo stage.
afterbirth the placenta and fetal membranes that discharged from the uterus after the birth of mammal offspring.
gestation the length of time it take a mammal embryo/fetus to develop from conception to birth.