The Reproductive system
Vocabulary Fertilization Egg Sperm Zygote Testes Testosterone Estrogen Ovary
Vocabulary Continued Scrotum Semen Penis Vagina Menstruation ovulation Menstruation Cycle Fallopian Tube
Sexual Reproduction The joining of egg and sperm is called fertilization. Egg is a female sex cell. Sperm is the male sex cell. Both are made during meiosis. Fertilized egg is called a zygote.
Male Reproductive System The testes, an endocrine gland which releases the hormone testosterone, is where sperm are produced. Located in scrotum to minimize heat. Testosterone controls male development. Sperm has a head that contains chromosomes. Sperm mixes with semen to provide an environment to swim. Semen also provides nutrients for sperm. Semen travel down urethra which travel through the penis. Muscle contraction prevent urine and semen from mixing.
Female Reproductive System Specialized to produce eggs (in ovaries) and nourish a developing baby until birth. Produces estrogen and other hormones for development. Each month one ovary releases a mature egg (menstruation) down the fallopian tube. Fertilization, the joining of egg and sperm, occurs in the fallopian tube. Egg travels to uterus, a hollow, muscular organ where egg attaches. If unfertilized, egg breaks down (menstruation). Vagina or birth canal is where the baby leaves mother during childbirth.
Menstrual Cycle