Homeostasis Flashcards
Where do peptide hormones travel?
In the blood
Name a secondary messenger
cAMP
What is unique about steroid hormones?
Can pass directly through membranes due to being hydrophobic and act as a transcription factor in the nucleus
What does the adrenal medulla do?
Secretes adrenaline into blood to bind to receptors
What us glycogenolysis?
Break down of glycogen
What is an endotherm?
Warm blooded creature
What is an ectotherm?
Cold blooded creature
Where is the thermoregulator centre located?
Hypothalamus
Define metabolism
Chemical reactions within an organism
Define Excretion
Removal of waste products
What is the role of the hepatic vein?
Removes blood from the liver
What is the role of the hepatic artery?
Bring blood to the liver
What is the role of the bile duct?
To move bile to the stomach where it neutralises acids
What is the role of the hepatic portal vein?
Brings low pressure blood to the liver which is rich in nutrients
What is the role of a kupffer cell?
Phagocytosis which engulfs patgogens
What is a sinusoid?
Arwa of the liver which removes toxins
