1. Reproductive System Notes see transparancy
Male Reproductive System: produces sperm and hormone testosterone; consists of testes, scrotum, penis.
Testes: organ that produces sperm and testosterone (which controls male physical characteristics).
Scrotum: external pouch containing testes.
Semen: mixture of sperm cells and fluids.
Penis: male sex organ; contains end of urethra where urine/semen leave the body.

2. Reproductive System Notes see transparancy
Female Reproductive System: produces eggs and hormones estrogen, progesterone; consists of the ovaries, fallopian tubes, uterus, vagina.
Ovaries: produce egg cells and estrogen (which controls some female characteristics) and progesterone.
Fallopian tube: connects ovary (egg) to uterus; where fertilization occurs. Each month, one of the ovaries releases an egg.
Uterus (womb): hollow muscular organ; the zygote develops (embryo,fetus,newborn) in the uterus
Vagina: opening between uterus and outside body.

3. Reproductive System Notes
Sexual Reproduction (= Meiosis). The gametes are:
Egg: female sex cell (= 23 chromosomes)
Sperm: male sex cell (= 23 chromosomes)
Fertilization: joining of sperm and egg
Zygote: fertilized egg (= 46 chromosomes)
Note: zygote undergoes cell division (= Mitosis):
zygote → embryo → fetus → newborn (birth).
Chromosome: X-shaped structure in cell’s nucleus contains units called genes which carries genetic information (inherited traits).

4. Ovulation, Fertilization, Zygote
Cell Division
Watch video
fertilized egg, life begins
fallopian tube
uterus, womb

5. Reproductive System Notes see transparancy
Menstrual Cycle: monthly cycle of change consisting of egg development in ovary and uterus prepares for arrival of embryo.
Beginning: development of mature egg; uterus thickens
Midway: egg released from ovary into fallopian tube (= ovulation); where fertilization occurs. If no fertilization, menstruation (“period”) occurs.
Menstruation: blood, unfertilized egg, uterus’s tissue lining leaves body through vagina.

6. Endometrium
Uterine lining
female
period

7. Endometrium
Uterine Lining