Do Now: 1. Get your homework out and put it on your desk to be picked up. 2. Log in to the netbooks and go to the class website. – Schools->middle->o.henry->staff directory->fillpot->calendar December 9 Download powerpoint F5 to make full screen

ESSENTIAL QUESTION: How do the structures of the digestive system work together to process the food you eat? How do the structures of the excretory system work together to maintain homeostasis? OBJECTIVES: Identify the main functions of the human organism including the digestive and excretory systems.

Today’s Agenda -digestive system Prezi and notes -color organs in the excretory system -excretory system notes A little extra… -explore

Digestive System Prezi Prezi link Play the Prezi on the digestive system and take the notes on each of the organs in the digestive system on your notetaking page. When you are done, raise your hand and have Mrs. Fillpot check and sign your work. She will also give you your next assignment.

Excretory System Diagram Tape diagram to your comp book Color and label organs of the excretory system using the information on the next slide.

Checking in… Your excretory system diagram should now be labeled and colored. Raise your hand to get your next assignment and for Mrs. Fillpot to grade what you have done so far.

Excretory System Notes Tape notes into comp book Follow along with the presentation and fill in both pages of your excretory system notes. When you are done, you will raise your hand and have Mrs. Fillpot check and sign your work.

The Human Excretory System Notes The function of the excretory system is the excrete (get rid of) wastes that are not helpful to the body.

Waste Wastes that are removed include carbon dioxide, water, salt, urea and uric acid. All excreted wastes travel at some time in the blood.

Structures of the Excretory System 1.Skin 2.Lungs 3.Liver 4.Large intestine 5.Urinary System Think – Pair – Share: Can you guess how these structures are a part of the excretory system?

Skin Wastes such as excess water, salt, urea and uric acid are removed from the body in sweat.

Lungs Excess carbon dioxide waste is removed from the body when we exhale. CO 2

Liver The liver is a part of what other system? The digestive system Liver

The liver has many functions, including (but not limited to): 1.to produce substances that break down fats 2.produce urea (the main substance of urine) 3.make certain amino acids (the building blocks of proteins) 4.filter harmful substances from the blood (such as alcohol) 5.The liver is also responsible for producing cholesterol. It produces about 80% of the cholesterol in your body.

The Liver and Waste The liver produces urea and uric acid as a by-product of the breakdown of proteins. Urea and uric acid are sent to the kidneys to be processed. Liver

Large Intestine The large intestine removes solid, undigested food from the body after it passes through the digestive system. Waste is stored in rectum until it is excreted from the body as solid waste.

The urinary system The kidneys filter the blood to form urine, which is excess water, salt, urea and uric acid. Read about the urinary system and fill in the diagram as you go. Color the organs in the urinary system as described in the directions.

Check with Mrs. Fillpot… At this point, you should be done with all three of the pages Mrs. Fillpot assigned for today. Raise your hand and have her check and sign your work. Tape your work into your comp book.

You have earned free time on the computer! Go to this website...Kids Health, How the Body Works. Go to this website...Kids Health, How the Body Works. Explore and play games over the human body.

ESSENTIAL QUESTION: How do the structures of the digestive system work together to process the food you eat? How do the structures of the excretory system work together to maintain homeostasis? OBJECTIVES: Identify the main functions of the human organism including the digestive and excretory systems.