9-Reproductive System

2 - Male reproductive organs are specialized for the formation of sperm (gam-ete) and transporting sperm.

is the tube that sperm travels through. 3 - The vas deferens is the tube that sperm travels through.

4 - Semen is composed of sperm cells and secretions of the prostate and bulbourethral [ball-bo-your-ree-throw] glands .

5 - Semen activates sperm cells.

6 - Testosterone is the most important male hormone. Testosterone encourages the development of male sex organs. It is responsible for the development of male secondary sexual characteristics.

7 - Female reproductive organs are specialized for childbirth and development of a fetus. The primary structures are the ovaries, uterus, and vagina.

release an egg cell (gam-ete) into the uterus. 8 - The ovaries release an egg cell (gam-ete) into the uterus.

sustains life for the embryo until childbirth. 9 - The Uterus sustains life for the embryo until childbirth.

allows transportation of the fetus during delivery. 10 - The vagina allows transportation of the fetus during delivery.

11 - Estrogen and progesterone are the primary female sex hormones.

is responsible for female sexual characteristics. 12 - Estrogen is responsible for female sexual characteristics.

is responsible for changes in the uterus. 13 - Progesterone is responsible for changes in the uterus.

14 - Menopause is related to low estrogen levels and changes in the female reproductive organs.

The product of fertilization is a zygote with 46 chromosomes. 15 – zygote [zie-got] The product of fertilization is a zygote with 46 chromosomes.

16 - Key Terms Amenorrhea - absence of menstrual flow Gestation - 40 weeks of pregnancy Orchitis - inflammation of a testis Cesarean section - birth of a fetus through an abdominal incision