1. Reproduction Part I: Anatomy

2. Functions Overall: to produce offspring Male System: to produce & deliver sperm Female System: produce eggs, provide place for fertilized eggs to develop

3. Male Anatomy Bladder Urethra Penis Testes Scrotum Epididymis Bulbourethral Gland Prostate Gland Seminal Vesicle Vas Deferens

4. Parts of the Male Scrotum: the sac that holds the testes ◦positioned outside of the abdomen ◦Why? ◦allows sperm to develop in an environment 2- 3°C cooler than body temperature Testes: produce sperm Epididymis: where immature sperm mature, grow tails Vas deferens: tube, stores some sperm up to 3 months!

5. Sperm Sperm: male sex cells ◦300 million produced PER DAY! ◦3 parts:  Head = DNA  Midsection = energy!  Tail = swim!

6. Sperm Development Heads and Tails  testes & epididymis Seminal vesicles: secrete sugar mixture ◦Provides energy for sperm Prostate Gland: secrete alkaline fluid ◦Protects sperm from female fluids Bulbourethral Gland: secretes fluid ◦Lubricates and cleanses urethra ◦Why? Sperm & Fluids = Semen

7. Sperm Release Upon arousal:  Sperm leave vas deferens  towards Urethra, picking up fluids  from Urethra, leave body Ejaculation: sperm ejected by smooth muscle contractions ◦Not voluntary! ◦2-6 mL of semen released

8. Female Anatomy Oviduct or Fallopian Tubes Ovary Uterus Cervix Vagina Bladder Urethra Rectum Anus

9. Parts of the Female Ovaries: site of egg production Oviducts (Fallopian Tubes): transport eggs from ovary to uterus ◦*Fertilization happens here* Uterus: where fertilized egg develops ◦Has 2 layers, 1 muscular, 1 thin lining Cervix: passageway from uterus  vagina ◦Muscles control this Vagina: birth canal; passage to the outside