bio3

• carbon dioxide
• water
• salts
• urea

• lungs
• liver
• sweat glands
• kidneys

• excretion of carbon dioxide + water vapor
• wastes of cellular respiration

• deamination
• breakdown of red blood cells

• used to get rid of excess amino acids
• amino group is removed from amino acids
• amino groups converted into urea
• urea excreted to the kidneys

excrete wastes (water, salts, small amount of urea)

• the mixture of wastes and water excreted by the sweat glands
• regulates body temp

• kidneys
• ureters
• urinary bladder
• urethra

• remove urea from the blood
• regulate the concentrations of most substances in body fluids

ball of capillaries

• the functional unit of the kidney
• about 1 mil in one kidney

• urine flows from each kidney to a large tubule called the ureter
• ureters carry urine to the bladder

urine is periodically expelled from the bladder into the urethra which leads outside the body

disposition of uric acid in the joints