1. 9-Reproductive System

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

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

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

5. 5 - Semen
activates sperm cells.

6. 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. 7 - Female reproductive organs
are specialized for childbirth and development of a fetus.
The primary structures are the ovaries, uterus, and vagina.

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

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

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

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

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

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

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

15. 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. 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