Friday, October 22, 2010

Excretion

DOWNLOAD THE SLIDES FOR EXCRETORY SYSTEM HERE!

YOU NEED TO KNOW HOW TO:
  1. Define excretion as the removal of toxic materials and the waste products of metabolism from organisms.
  2. Describe the removal of carbon dioxide from the lungs.
  3. State that the skin is an organ of excretion and rids of waste via perspiration.
  4. Simply identify on diagrams of the nephron and urinary system: ureter, bladder, urethra, kidney, Malpighian corpuscle (Bowman's capsule), proximal convoluted tubule, loop of Henle.
  5. State that the function of the kidney is to simply remove urea and excess salts and water from the blood.
  6. Be able to state the functions of: ureter, bladder, urethra, kidney, nephron.
  7. Describe ultrafiltration and selective reabsorption.
  8. Describe dialysis in kidney machines.

VIDEOS:

1. URINARY SYSTEM (very informative!)


2. FUNCTION OF THE NEPHRON (informative!)


3. BASICS OF THE EXCRETORY SYSTEM CARTOON (terrible narration voice but good basic information!)




NEXT TOPIC:

- HOMEOSTASIS

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