| A | B |
|---|
| nitrogenous wastes | produced when excess amino acids are used in cellular respiration |
| nontoxic wastes | can be released or recycled in other metabolic activities |
| toxic wastes | are either sealed off and stored or are released |
| kidneys | filter our blood by removing wastes (urea0 |
| liver | breaks down red blood cells and prduces urea after amino acid deamination |
| ureter | urine flows from the kidneys through this to the urinary bladder |
| urinary bladder | urine is exreted from this through the urethra |
| kidney stones | accumulation of solid material that may block the kidneys, ureters, or bladder |
| nephritis | an infection of the kidneys which may lead to kidney damage or failure |
| gout | caused by uric acid deposition in the joints producing inflammation |
| uremia | accumulation of metabolic wastes in the blood due to failure of the filtering kidneys |
