Download Class Biology DIGESTIVE SYSTEM MODEL 1.ааCOLOR the parts

Name ________________________
Class Biology
DIGESTIVE SYSTEM MODEL
1. COLOR the parts of the human digestive system in the following way:
a. BLUE ­ mouth, esophagus, stomach, small intestines
b. PINK or RED ­ salivary glands, pancreas
c. BROWN ­ liver
d. GREEN ­ gall bladder, bile duct
e. YELLOW ­ large intestines, appendix
2. Cut out the organs and place them on a separate paper. Have your teacher check the proper
placement before you tape or glue the labels.
3. Label the organs and glands with a dark pen/marker:
MOUTH,
EPIGLOTTIS,
ESOPHAGUS,
STOMACH,
PANCREAS, LIVER,
GALL BLADDER,
SALIVARY GLANDS,
APPENDIX, SMALL INTESTINE,
LARGE INTESTINE, ANUS
Name ________________________
Class Biology
The Digestive System
Turn to Chapter 8 Lesson 1 (pp. 168 ­ 172) in your book to help you with the following.
1. Glue or tape down the digestive system after having your teacher check the placement of each organ.
2. Label the following organs on your diagram.
MOUTH,
EPIGLOTTIS,
ESOPHAGUS,
STOMACH,
PANCREAS, LIVER,
GALL BLADDER,
SALIVARY GLANDS,
APPENDIX, SMALL INTESTINE,
LARGE INTESTINE, ANUS
3. Fill in the following chart with information from the book.
structure
mouth
esophagus
stomach
small intestine
(villi)
liver
gall bladder
pancreas
large intestines
rectum
anus
function
(what it does)
enzymes
Name ________________________
Class Biology
Digestive System Review Questions
Digestion (2 kinds)
What?
Why?
Where?
1. Mechanical
2. Chemical
MOUTH
1. In the mouth, food is acted upon in what two ways?__________________________________________
2. What is the function of the tongue during the eating process? __________________________________
3. What are the three classes of foods that are eaten? _________________________________________
4. What is the name of the digestive enzyme found in saliva? ____________________________________
5. What is the name of food that begins to get chemically changed in the mouth? ____________________
ESOPHAGUS
1. What is the name of the organ that branches off in front of the esophagus? ______________________
2. To which system of the body does the trachea belong? ______________________________________
3. What is the muscular wave motion that propels food along the esophagus? ______________________
4. What is the name of the burning sensation due to irritation caused by stomach acid backing up into the
esophagus? _____________________________________
5. What is the name of the valve found between the esophagus and the stomach? __________________
6. What is the function of this valve? _______________________________________________________
STOMACH
1. What are the major functions of this organ? _______________________________________________
2. Is the major role of this organ digestion? __________________________________________________
3. If hydrochloric acid should cause irritation of the stomach’s lining, what can develop? ______________
What protects the stomach lining?____________________________________________________
4. What is the partially digested liquid food leaving the stomach called? ____________________________
Name ________________________
Class Biology
LIVER and GALL BLADDER
1. What does the liver organ produce? ________ Where is this stored? ___________________________
2. What is the function of bile? _____________________________________________________________
PANCREAS
1. What is the function of this organ? _______________________________________________________
2. The gall bladder and pancreas secrete their enzymes into what structure? _______________________
SMALL INTESTINES
1. What is the approximate total length of the small intestine? ____________________________________
2. What are the two functions of the small intestines? __________________________________________
___________________________________________________________________________________
3. What is the name of the tiny structures that stick out from the walls of the small intestines? __________
4. What is the function of the villi? __________________________________________________________
___________________________________________________________________________________
5. What are the three classes of food digested in the small intestine? ______________________________
6. Carbohydrates are digested into what end products? ________________________________________
7. Fats are digested into what end products? _________________________________________________
8. Proteins are digested into what end products? ______________________________________________
APPENDIX
1. What is the function of this structure? _____________________________________________________
LARGE INTESTINE
1. What is the main function of the large intestine? _____________________________________________
2. What is the muscular wave motion that moves materials along the digestive tract? _________________
3. What does fiber in the diet help do for the large intestine? _____________________________________
RECTUM
1. What is the function of this organ? _______________________________________________________
Digestive Baddies­Extra Credit Op
Write a brief paragraph explaining one of the following digestive problems and give a 2­minute presentation
to the class. (what is it? what causes it? is there a treatment?)
­gallstones
­crohn’s disease
­hernia
­tapeworms ­appendicitis ­colon cancer
Name ________________________
­hemorrhoids
Class Biology