Science Chapter 3.5 Flashcards
What is defecation
the process of getting rid of solid waste (faeces - poo) from your body
What is faeces
Undigested material that has passed through your digestive tract aka poo
What is excretion
Getting rid of wastes your body has produced. It is the function of the excretory system.
Organs of the Excretory System
Lungs, Liver, Skin and Kidneys
Role of Lungs in Excretory System
the breathing out of carbon dioxide produce through respiration
Role of Liver in Excretory System
breaks down amino acids into urea (wee) and also poisonous substance into harmless substances
Role of skin in Excretory System
release of excess heat through sweating
Role of Kidney in Excretory System
They excrete urea and control the level of water and salt in the body
What is Urine (wee)
waste material that has been filtered out of the blood via the kidneys. Urine is made up of 95% water
Draw parts of urinary tract system
draw
Label parts of kidney
draw
what causes kidney diseases
high blood pressure, kidney stones and infection cause kidney disease
