excretorysystem_mod.ppt
- 1. How Our Body Eliminates Waste and keeps us healthy! Excretory System = Urinary System
- 2. Function: Removes or excretes excess water, H2O, urea, carbon dioxide, CO2, and other wastes from our blood. Importance: Harmful chemicals made when the body creates energy must be removed from blood to keep you healthy
- 3. Kidneys – filter out excess water, salt and chemicals as urine Lungs – filter out carbon dioxide, CO2, from the blood. (respiratory system) Skin – excretes water, as sweat, which contains some trace chemical wastes, including urea. (epidermis)
- 4. Liquid waste = urine
- 7. Kidney K Ureter B Urethra Ureters Urinary BLADDER Urethra
- 8. Function - filter wastes and excess water from the blood. Importance – control the amount of water in body, tell body when to make new red blood cells, take harmful chemicals from blood Other Info – located in back under ribs You have 2 kidneys, but can live with 1 Picture Kidneys
- 9. Function - tubes that take urine from the kidney to the urinary bladder. Importance – after the waste is filtered from blood, it must go to the bladder for storage Other Info – each kidney has its own ureter Picture Ureter
- 10. Function: a sack that stores urine/liquid waste Importance: Holds urine until you go to the bathroom Other Info: when full, a message is sent to your brain telling you to go to the bathroom Picture Urinary Bladder
- 11. Function- small tube that carries urine out of the body. Importance – connects the bladder to the outside of the body, how urine leave body Other Info – about 6mm wide Picture Urethra
- 12. Tiny tubes in the kidneys that filter and clean blood and balance supply of water and salt. (about 1 million per kidney)
- 14. 1. The ______________ filter waste and excess water from the blood. 2. The tube that carries urine out of the body is called the _____________. 3. The urinary bladder stores ____________ until it is ready to exit the body.
- 16. Doctors analyze urine for disease; Normal urine contains water, urea and trace minerals. Sugar in urine indicates Diabetes Protein in urine indicates the kidneys are not working and the person, or animal, is very sick.
- 17. 1. Excretory System 2. Lungs 3. Skin 4. Kidneys 5. Urine 6. Nephrons 7. Ureter 8. Bladder 9. Urethra
- 18. HW review Removes Water = Kidneys, Skin Brings Oxygen to blood = Lungs Removes Salt = Kidneys, Skin Stores Urine = Bladder Removes C02 = Lungs Produces Urine = Kidneys Removes Body Heat = Skin
- 19. Today’s Goal - To memorize the functions and order of the Kidneys, Ureter, Bladder and Urethra - To learn the difference between URETER and URETHRA
- 20. 1. What are the tubes that carry urine from the kidneys to the bladder called? 2. The __________ is the tube that carries urine out of the body. 3. What is the job of the kidneys?