 The Excretory System by Brandi Walters  Read silently and answer questions  Back side = cross out question that states “People often sweat more when they are exercising…”

How Our Body Eliminates Waste and keeps us healthy! Excretory System = Urinary System

Function: Removes or excretes excess water, H 2 O, urea, carbon dioxide, CO 2, and other wastes from our blood. Importance: Harmful chemicals made when the body creates energy must be removed from blood to keep you healthy

 Kidneys – filter out excess water, salt and chemicals as urine  Lungs – filter out carbon dioxide, CO 2, from the blood. (respiratory system)  Skin – excretes water, as sweat, which contains some trace chemical wastes, including urea. (epidermis)

Liquid waste = urine

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Artery Vein Kidney Ureter Urinary Bladder Urethra

Order KidneyK Ureter B Urethra Ureters Urinary BLADDER Urethra

 53B > Functions

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

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

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

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

 Tiny tubes in the kidneys that filter and clean blood and balance supply of water and salt. (about 1 million per kidney)

Brain Pop

Independent Practice  Handouts  Waste Removal and Edhelper Articles > read and answer questions  Finish for HW if not done in class ◦r◦r

1 st block  Handouts  Waste Removal and Edhelper Articles > read and answer questions  Finish for HW if not done in class ◦r◦r Independent Practice

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.

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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.

How the Excretory System Work Notebook Quiz - Write the word from the word bank to complete each definition - You will be able to use notes so make sure you have them Warm Up

Warm Up Answers 1. Excretory System 2. Lungs 3. Skin 4. Kidneys 5. Urine 6. Nephrons 7. Ureter 8. Bladder 9. Urethra

 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

1. D. Bladder 2. B. Ureters 3. D. One 4. C. Three 5. A. Valves 6. B. True 7. A. False

1. B. Two 2. D. Five 3. D. A kidney bean 4. C. To take waste out of blood 5. D. Renal Artery 6. B. Ureters 7. D. In the bladder 8. C. Red Blood 9. To replace the water and electrolytes your body looses when it sweats

Today’s Goal - To memorize the functions and order of the Kidneys, Ureter, Bladder and Urethra - To learn the difference between URETER and URETHRA

Foldable > 4 doors OutsideInside KidneyInfo given in Ureterdiagram on 53B Bladder Urethra

1. Textbook 2. The Bladder Article & Questions 3. Colored Diagram 4. Crossword Puzzle 5. What is Urine? Article *you must go in order Textbook 52 – 55 B Answer 1 – 3 on 55 Write questions and answers *each assignment is worth a 100 HW grade if completed, If not it is a zero Independent Practice

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?

 The Excretory System  HW will be collected once quiz starts

 Put something in front of and beside you  Eyes on your own paper  No talking

 With your group you will create an educational poster about a excretory/urinary problem  Depending on the assigned topic, you will be given a set of questions to answer and put on your poster

Due at the end of class today  Grade depends on the following 1. Completion – all the required info is on the poster 2. Collaboration (working together, everyone helping) 3. Use of time and resources 4. Neatness, Color and Pictures