1. 5/1 Daily Catalyst Pg. 65 Digestive System
1. Where is oxygen and CO2 exchanged?
2. The blood carries _______, _______ and _______ throughout the body.
3. Where is oxygenated and deoxygenated blood exchanged?
4. T/F: all blood in the heart is oxygenated

2. 5/1 Class Business Pg. 65 Digestive System
Public health campaign project due FRIDAY, May 1st
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Extra credit: gloves, paper towels, hand sanitizer, tissues, band aids, pens, pencils, paper, red pens, tape, glue, and colored paper, markers, and, white board markers
Extra credit school play
May 1, 2, 9
½ sheet review STAPLED to your ticket
Tuesday lesson

3. Data
Seniors, if you have a D or F, you will not be attending the senior field trip.
Grade Danger: Chris R., Estephanie, Hannah L., Mohammad, Lavone, Camila, Joseph, and James
Grade
Number of students A 3 B 8 C D 1

4. Brain Teaser How do Eskimos make their beds?
With sheets of ice and blankets of snow.

5. 5/1 Daily Catalyst Pg. 65 Digestive System
Class Business
Digestive system notes
Work time
Exit ticket #12

6. 5/1 Objective
Today, we will discuss the structures and functions of the digestive system so that we will be able to label the system.

7. Essential Questions
1. What are the anatomical parts of the digestive system?
2. What are the effects of the structures not working properly?

8. Review
THIS UNIT IS ABOUT DIFFERENT BODY SYSTEMS MAINTAINING HOMEOSTASIS IN THE HUMAN BODY.
Homeostasis:  
  The process of maintaining a stable, internal environment in the body

9. Partner Review Nervous System Cardio/Resp System
Find a classmate who has the same eye color as you and discuss the nervous system for two minutes.
Find a classmate who has the same phone as you and discuss the cardio/Resp system for two minutes.

10. What does our Digestive System do?
Key Point #1: Function 1. Converts food into simple molecules 2. Absorb nutrients 3. Eliminates solid waste

11. Key Terms Key Point #2: Digestion
Definition: process of breaking down food
Break??
Break bonds in food

12. Key Point #2: Digestion is the process of breaking down food.
Key Point #3: Types of digestion
Mechanical
physical breakdown
example: teeth crushing
Chemical
Acid breakdown
example: stomach acid and saliva

13. No Need to memorize all of these…I will tell you which ones you should be familiar with!
Just for them to see what is involved in the digestive system.

14. Glue in

15. The Parts
There are different organs in your digestive system, and each plays a part in the process so that nutrients reach your body cells.
The key players
Key Point #4: Food flow-
Mouth-->Pharynx-->Esophagus-->Stomach-->Small intestine-->Large intestine

16. ORGAN SPOTLIGHT! MOUTH 1. Mouth Teeth Mechanical digestion Tongue
Forms bolus
A mass of chewed food

17. ORGAN SPOTLIGHT! Pharynx
“throat”

18. ORGAN SPOTLIGHT! Esophagus
Tube carries bolus from pharynx to stomach
How?
Peristalsis

19. ORGAN SPOTLIGHT! Stomach
A bag like organ that stores and digests food
Chemical digestion
Stomach acid
It takes 4 hours for food to exit your stomach

20. Acid Reflux– Heartburn Gastric Juice creeps up the esophagus because of faulty sphincter
Background Info

21. ORGAN SPOTLIGHT! Small intestine
Absorbs ALL nutrients into the blood
Villi
6 meters long

22. ORGAN SPOTLIGHT! Large intestine
Absorbs water
Forms solid waste
1.5 meters long

23. Why is the digestive system important?
If the digestive system malfunctions and food is not digested properly, the body will not receive the correct amount of energy and nutrients it needs to function.
Turn and talk about this question
Malfunction: failure to function normally
Function: grow, reproduce, repair, and maintain homeostasis

24. What needs to happen in order to promote homeostasis (stability)
Key Point #5:
What needs to happen in order to promote homeostasis (stability)
Key Point #5:
Eating a balanced meal
Nutrients need to be absorbed & distributed
Solid waste exits body on a normal basis

25. Eating a balanced meal
With your tablemates, discuss healthy meals and foods AND appropriate amounts of food.

26. With a partner
With your partner, review all seven organs that are shown here in the picture. Use your notes for help. Take three minutes to complete this task.

27. Review #1
The site of chemical digestion by saliva:
Mouth
mouth

28. Review #2
A very acidic organ:
Stomach
Stomach

29. Review #3: The tube that connects the mouth to the stomach Esophagus

30. Review #4
The site of mechanical digestion by teeth:
Mouth
mouth

31. Practice Time
Directions: Complete the digestive system article on packet page 9. You do have an exit ticket today so work efficiently!
Time: 12 minutes
Noise: 1 (partner)

32. Exit Ticket #14
Directions: Silently and independently complete the exit ticket. Turn the exit ticket into the basket. You may SILENLTY work on your digestive assignment if not finished
Noise: 0 (silent)
Time: 15 minutes