Excretion Excretory organs and excretory productsThe importance
of excretionUrinary system in human Function of kidneyThe
importance of maintaining healthy kidneyExcretion in plants1Human
excretionExcretion is the removal of metabolic waste product from
the body.
Metabolism chemicals reaction in the bodyTake in oxygen,
digested foodRemove - _______, __________, _______2Excretory
organsExcretory organs remove waste products from the body
3 excretory organs and its waste products:Skin: ________,
________, __________Lung:________, ________Kidney:________,
________, __________
The importance of excretionTo maintain healthy bodyBecome toxic
when (urea) accumulate in the bodyBecome ill some organs will
damageCan be deathHigher concentration of carbon dioxide can
increase breathing rate
The Urinary System in Man
Structure of The Kidney
Functions of The KidneyKidney filter wastes from the
bloodRegulate water and chemical balance in the body
GFR - Glomerular filtration rateGlomerular filtration rate (GFR)
is a test used to check how well the kidneys are working.
Specifically, it estimates how much blood passes through the
glomeruli each minute. Glomeruli are the tiny filters in the
kidneys that filter waste from the blood.The GFR test is
recommended for people with chronic kidney disease. It is also
recommended for persons who may get kidney disease due
to:DiabetesFamily history of kidney diseaseFrequenturinary tract
infectionsHeart disease High blood pressure Urinary blockage
IMPORTANCE OF MAINTAINING HEALTHY KIDNEYTo prevent kidney from
damageFood with too much chemicals (mercury, lead, arsenic) can
damage the kidneyToo salty ( cause hypertension lead to kidney
stones) or too sweet (can cause diabetes) food also can damage
kidney
Ways to improve kidney : drinks 8 glasses of water per day,
regular exerciseKidney failure: dialysis or kidney
transplant.Dialysis Dialysis blood is filter through an artificial
membrane (separate particles of different sizes)
Two types of dialysis: haemodialysis, protoneal dialysis
