5.2 Excretion Flashcards
What is excretion ?
The removal of toxic metabolic waste products from the body
Name 3 excretory products
Carbon dioxide, urea, bile
4 main excretory organs
Lungs, liver, kidneys, skin
What is the effect on the blood of an increase in carbon dioxide concentration ?
Decrease in pH
What is the response to an increase in carbon dioxide concentration in the blood ?
Increase in breathing rate
What is the name for the basic functional unit of the liver ?
Lobules
What is the name of liver cells ?
Hepatocytes
What are the 4 vessels associated with the liver ?
Hepatic vein, hepatic portal vein, hepatic artery, bile duct
Which liver vessel is intra-lobular
Hepatic vein
Which liver vessels are interlobular ?
Hepatic portal vein, hepatic artery, bile duct
What are the chambers in the lobules through which blood from the hepatic portal vein and hepatic artery pass?
Sinusoids
What are the chambers in the lobules through which bile is transported to the bile duct?
Canaliculi
