UNDER CONSTRUCTION...2021 UPDATES LOADING...
• Excretion in Various Organs: Brief role of the following:
- the lungs;
- the kidneys and bladder;
- the liver;
- the alimentary canal (gut); and
- the skin.
The substances excreted by each and the origins of these substances.
• Urinary system
The structure of the:
- urinary system: position of kidneys, ureters, bladder, urethra.
- kidney: structure and functioning, removal of urea and excess water and salts, re-absorption of glucose and some salts.
- nephron: structure and functioning; ultra-filtration, reabsorption, tubular excretion, pH control, formation of urine
• Homeostatic control of water and salts: role of ADH and aldosterone: Dialysis and kidney transplants.
• Mention of diseases affecting kidney function, e.g. kidney stones, kidney failure due to overuse of some painkillers, effect of bilharzia infection.
Excretion in Humans - Notes (cl)
Act.1 Dissection of a kidney (page 244 - 245)
Act. 2 The function of the nephron (page 252 - 253)
Act. 3 ADH (page 254 - 255)
Act. 4 Dialysis (page 265 - 257)
How do your kidneys work? - Emma Bryce
The Excretory System - Crash Course Biology
Nephron Structure and functions
Urinary System Part 1 - Crash Course
Urinary System Part 2 - Crash Course
Excretion - ADH and Homeostasis
EXCRETION - WCED Term 3 Week 4
EXCRETION - WCED Term 3 Week 5
HOMEOSTASIS - WCED Term 3 Week 6