Excretory System Flashcards
Where is waste expelled from in mammals?
Anus
Where is waste expelled from in avians and reptiles?
Cloaca
What type of animal consumes its own faeces to reabsorb any undigested nutrients?
Caetotrophs
State an example of caetotrophs
Rabbit
What are the main functions of the excretory system?
Maintain osmotic balance, remove metabolic waste
Name the organs that are involved in the excretory system
Skin, lungs & liver
Outline the function of the skin within the excretory system
Excretes water & substances
Outline the function of the liver in the excretory system
Detoxification & produce urea
Outline the function of the liver in the excretory system
Excretes gas waste (carbon dioxide)
State the organs in the urinary system
Kidneys & bladder
State the function of the kidneys in the urinary system
Filters blood to produce urine
State the function of the bladder in the urinary system
Stores urine
What is the nephron?
Functional unit of the kidney
State the function of the nephrons
Processes waste products from blood to produce urine, absorbs interstitial fluid & allows substances to travel through itself by diffusion
What is the glomerulus?
Specialised mass of capillaries
