TOPIC: Reproduction AIM: What are the parts of the male and female reproductive systems?

Reproduction Process through which living things produce new individuals of the same kind

What are sex cells? Gametes Sperm = male sex cells

Eggs = female sex cells

Fertilization Joining of a sperm cell with an egg to form a fertilized egg (ZYGOTE)

Rod-like structures found in every cell Hereditary/genetic information Chromosomes Rod-like structures found in every cell Hereditary/genetic information 46 in each cell except in sex cells which have 23

EGG + SPERM  ZYGOTE 23 23 46 (NORMAL #) 23 + 46 23

MALE REPRODUCTIVE SYSTEM

Testes Male gonads Produces sperm & testosterone

Scrotum = Sac of skin which holds testes Keeps temp slightly cooler for sperm production

Sperm duct Tube that carries sperm from testes to urethra Vas deferens

produce fluids that make up SEMEN (used to transport sperm) Glands

Penis male organ that transfers sperm into female tube that carries SPERM and URINE out of the body Penis Urethra

9. Urinary bladder 4. Seminal vesicles 5. Prostate gland 10. rectum 6. Cowper’s gland 3. Vas deferens 7. urethra 8. penis 2. scrotum 1. testes

REVIEW 1. In human males, sperm cells are suspended in a fluid medium. The main advantage gained from this adaptation is that the fluid  (1.) activates the egg nucleus so that it begins to divide  (2.) provides currents that propel the egg down the oviduct  (3.) removes polar bodies from the surface of the sperm  (4.) acts as a transport medium for sperm

2. In the human male, sperm leave the body through the ________________. 3. In the human male, gametes are produced in the ______________.

FEMALE REPRODUCTIVE SYSTEM

Ovaries Female gonads Produces eggs, estrogen & progesterone

Follicles Tiny egg sacs in ovaries Each holds an immature egg

Oviduct Fallopian tubes Carry egg to uterus Where FERTILIZATION occurs

Uterus muscular organ where fetus develops CERVIX – lower end

Vagina Birth canal Muscular tube that receives sperm from the male

Ovulation Egg is released from the ovary & moves into oviduct

1. ovary 2. Oviduct / fallopian tube 8. rectum 3. uterus 4. cervix 7. Urinary bladder 6. Urethra 5. vagina

Identify all labeled structures in the diagram. In which structure will an embryo develop? In which structure can an egg be fertilized? Which structure produces and releases eggs? What hormones does structure A secrete?