Excretory System. Function Removal of waste from blood and lymph to maintain homeostasis –Wastes...
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Transcript of Excretory System. Function Removal of waste from blood and lymph to maintain homeostasis –Wastes...
![Page 1: Excretory System. Function Removal of waste from blood and lymph to maintain homeostasis –Wastes removed Excess salts Carbon dioxide (CO 2 ) Urea Regulates.](https://reader035.fdocuments.net/reader035/viewer/2022072108/56649eca5503460f94bd8926/html5/thumbnails/1.jpg)
Excretory System
![Page 2: Excretory System. Function Removal of waste from blood and lymph to maintain homeostasis –Wastes removed Excess salts Carbon dioxide (CO 2 ) Urea Regulates.](https://reader035.fdocuments.net/reader035/viewer/2022072108/56649eca5503460f94bd8926/html5/thumbnails/2.jpg)
Function
• Removal of waste from blood and lymph to maintain homeostasis– Wastes removed
• Excess salts
• Carbon dioxide (CO2)
• Urea
• Regulates pH of blood, water content of body, and volume of blood
![Page 3: Excretory System. Function Removal of waste from blood and lymph to maintain homeostasis –Wastes removed Excess salts Carbon dioxide (CO 2 ) Urea Regulates.](https://reader035.fdocuments.net/reader035/viewer/2022072108/56649eca5503460f94bd8926/html5/thumbnails/3.jpg)
Organs Involved
• Kidneys– Most important!
• Ureters– Connect kidney to bladder
• Bladder– Stores wastes for urination– Prostate gland (only in males)
• Urethra– Urine exits the body
![Page 4: Excretory System. Function Removal of waste from blood and lymph to maintain homeostasis –Wastes removed Excess salts Carbon dioxide (CO 2 ) Urea Regulates.](https://reader035.fdocuments.net/reader035/viewer/2022072108/56649eca5503460f94bd8926/html5/thumbnails/4.jpg)
Kidneys• Located on each side near the
lower back
• Filtration– Urea, water, glucose, salts, vitamins
and other wastes are filtered out of the blood by nephrons in the kidney
• Reabsorption– Purified blood is recycled by the body
• Wastes become urine and are transported out of the kidney to…
![Page 5: Excretory System. Function Removal of waste from blood and lymph to maintain homeostasis –Wastes removed Excess salts Carbon dioxide (CO 2 ) Urea Regulates.](https://reader035.fdocuments.net/reader035/viewer/2022072108/56649eca5503460f94bd8926/html5/thumbnails/5.jpg)
Ureters
• Transport urine from kidneys to bladder
![Page 6: Excretory System. Function Removal of waste from blood and lymph to maintain homeostasis –Wastes removed Excess salts Carbon dioxide (CO 2 ) Urea Regulates.](https://reader035.fdocuments.net/reader035/viewer/2022072108/56649eca5503460f94bd8926/html5/thumbnails/6.jpg)
Bladder and Urethra• Stores urine until enough is collected to be
released through the urethra out of the body
![Page 7: Excretory System. Function Removal of waste from blood and lymph to maintain homeostasis –Wastes removed Excess salts Carbon dioxide (CO 2 ) Urea Regulates.](https://reader035.fdocuments.net/reader035/viewer/2022072108/56649eca5503460f94bd8926/html5/thumbnails/7.jpg)
Kidney Stones
• Crystallized pieces of calcium, magnesium, or uric acid salts can block the ureter– VERY painful!
• Must be passed through the urine to exit the body– Can be broken apart by
soundwave treatment to make this process less painful
• One cause = drinking too much soda