| A | B |
| process of removing waste | excretory system |
| excreatory system rids... | rids Nitrogen and urea |
| the main organ the excrete nitrogen waste | kidneys |
| where are the kidneys located? | near the lower part of the spine |
| how big are the kidneys? | 10cm long 5 cm wide |
| the kidney contain how many blood vessels? | hundreds of them |
| where does blood enter the kidneys? | it enters through an artery |
| what passes through your kidneys? | 180liters of fluid, salt,water,vitamins,and other substances |
| how does the kidney control the pH of the blood | through the urine |
| what are the three processes that the kidneys control the PH of the blood? | filtration, reaborption, secretion |
| ?How is urine formed in the kidneys? | water, urea and salt left in the kidneys |
| collecting tubes in the kidneys merge into larger tubes called | ureters |
| carry urine into the bladder | ureters |
| urine is stored here | bladder |
| a collapsible bag with muscles that stretch when it fills with urine | uninary bladder |
| when the bladder is full what happens | its smooth muscles send signals to the brain |
| releases liquid waste from the body | urethra |
| 4 ways to care for excreatory system | drink water, balanced diet, rest, exercie |