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, 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

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)

Liquid waste = urine

http://kidshealth.org/kid/htbw/USmovie.html?tracking=K_RelatedArticle

Artery

Vein

Kidney

Ureter

Urinary Bladder

Urethra

Kidney K 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 ribsYou 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)

Independent Practice

Handouts Waste Removal and Edhelper Articles> read and answer questions Finish for HW if not done in class

◦ r

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

◦ r

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.

http://www.whyzz.com/why-is-pee-yellow

http://kidshealth.org/kid/htbw/pee.html

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 Answers1. Excretory System2. Lungs3. Skin4. Kidneys5. Urine6. Nephrons7. Ureter8. Bladder9. Urethra

HW review

Removes Water = Kidneys, SkinBrings Oxygen to blood = LungsRemoves Salt = Kidneys, SkinStores Urine = BladderRemoves C02 = LungsProduces Urine = KidneysRemoves Body Heat = Skin

1. D. Bladder2. B. Ureters3. D. One4. C. Three5. A. Valves6. B. True7. A. False

1. B. Two2. D. Five3. D. A kidney bean4. C. To take waste out of blood5. D. Renal Artery6. B. Ureters7. D. In the bladder8. C. Red Blood9. 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

Outside InsideKidney Info given in Ureter diagram on 53B

Bladder Urethra

1. Textbook2. The Bladder

Article & Questions

3. Colored Diagram4. Crossword Puzzle5. What is Urine?

Article

*you must go in order

Textbook52 – 55 BAnswer 1 – 3 on 55Write 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 resources4. Neatness, Color and Pictures