PowerPoint Presentation

$C:\Documents and Settings\Student\My Documents\Masterclips\CLIPART\PEOPLE\ANATOMY\ANATM075.WMF$

What to think about…..What to think about…..

What is the digestivesystem?

Why do we need it (what’s itsfunction)?

How does it work?

What are the different partsand their functions?

Of all the things we do, whatrequires energy?Of all the things we do, whatrequires energy?

In order to obtain energywe need

How do weget thisfuel?

$C:\Documents and Settings\Student\My Documents\Masterclips\CLIPART\PEOPLE\HANDS\HAND077.WMF$

What does food provide besides justenergy?What does food provide besides justenergy?

But before our bodies can usefood it must be

RAW MATERIALS-we need to grow, repairtissues, and make newbody cells.

Why Digestion?Why Digestion?

Because food must bebroken into smaller piecesthat can fit inside a cell.

chemicals the body needs to stayhealthy are called

The 5 main nutrients:The 5 main nutrients:

Proteins

Carbohydrates

Fats

Vitamins

Minerals

Where is most protein found?Where is most protein found?

Proteins build and repair cells.

http://a725.g.akamai.net/7/725/1095/000029/www.omahasteaks.com/gifs/large/z_ts001.jpg

http://www.ilovecheese.com/images/chatter_signup_cheese.gif

http://rds.yahoo.com/S=96062883/K=Fruit+Pictures/v=2/SID=e/l=IVI/SIG=12q69u3rm/EXP=1112965055/*-http%3A//dynamo.ecn.purdue.edu/~ace/water2/samplepix/imgadapt/fruit2.jpg

http://www.japan-guide.com/g3/2043_01.jpg

Where are most carbohydrates found?Where are most carbohydrates found?

Carbohydrates are the body’smain source of energy.

Pasta, Rice, Bread, Fruits, etc.

http://www.ilovecheese.com/images/recipes/po-main.jpg

2 kinds of Carbs2 kinds of Carbs

Simple Carbohydrates- these carbsare your basic sugars that yourbody can turn into energy veryquickly.

Complex Carbohydrates- thesecarbs include potatoes and foodsmade from grains. Requires thebody break them down first. Alsocalled starches.

Where are most fats found?Where are most fats found?

Dairy, oil, butter, meats,and especially fast foods.

Fat is a way that the humanbody stores energy. Too muchcan be unhealthy though.

2 kinds of Fat2 kinds of Fat

The fat the is liquid at roomtemperature and is found invegetable oils and seeds are

Fats that are solid at room temperatureand are considered not good for you arecalled

Small quanitities of vitamins regulatebody functions and prevent disease.Small quanitities of vitamins regulatebody functions and prevent disease.

Another substance needed by thebody helps chemical reactions,builds cells, sends nerve impulses,and carries oxygen are

Parts of the Digestive SystemParts of the Digestive System

Mouth

Esophagus

Stomach

Small intestine

Large Intestine

Together this makes a tube calledthe

About how long is thedigestive tract?About how long is thedigestive tract?

Other organs attachedto the digestive tractinclude the

This is the opening to thedigestive system.This is the opening to thedigestive system.

Teeth and salivary glands helpdigest.

2 kinds of Digestion2 kinds of Digestion

The physical breakdown offood into smaller parts bycutting and tearing it.

What part of the mouth does this?

Another kind of digestion where themolecules of food are broken downinto smaller molecules is calledAnother kind of digestion where themolecules of food are broken downinto smaller molecules is called

In your mouth this is doneby a liquid called

When food is swallowed, wheredoes it go next?When food is swallowed, wheredoes it go next?

What is theesophagus?

A tube thatconnects themouth and thestomach.

$C:\Documents and Settings\Student\My Documents\Masterclips\CLIPART\PEOPLE\ANATOMY\ANATM075.WMF$

How does food make its waythrough the digestive tract?How does food make its waythrough the digestive tract?

What is peristalsis?

Waves of muscularcontractions that move foodthrough the digestive system.

1. What are the chemicals yourbody needs to be healthy?1. What are the chemicals yourbody needs to be healthy?

A. peristalsis

B. nutrients

C. organs

D. saliva

2. Which of the following is aliquid at room temperature?2. Which of the following is aliquid at room temperature?

A. Proteins

B. Saturated fats

C. Unsaturated fats

D. Vitamins

3. What connects the mouth tothe stomach?3. What connects the mouth tothe stomach?

A. peristalsis

B. pancreas

C. esophagus

D. protein

4. Which of the following is nota nutrient?4. Which of the following is nota nutrient?

A. saliva

B. protein

C. fat

D. carbohydrates

5. The type of digestion thatbreaks down food into smallermolecules is5. The type of digestion thatbreaks down food into smallermolecules is

A. Carbohydrate

B. Peristalsis

C. Mechanical

D. Chemical

6. Which part of the mouth isresponsible for mechanicaldigestion?6. Which part of the mouth isresponsible for mechanicaldigestion?

A. lips

B. tongue

C. saliva

D. teeth

7. What do we call the kind ofcarbohydrate that is easy to getenergy from, like sugar?7. What do we call the kind ofcarbohydrate that is easy to getenergy from, like sugar?

A. Simple

B. Complex

C. Double

D. Single

8. Which of the following is notconnected to the digestive tract?8. Which of the following is notconnected to the digestive tract?

A. gall bladder

B. liver

C. pancreas

D. ureter

9. Which of the following is agood source of protein?9. Which of the following is agood source of protein?

A. bread

B. rice

C. meat

D. potatoes

10. How does food makes it waythrough the digestive tract?10. How does food makes it waythrough the digestive tract?

A. esophagus

B. peristalsis

C. mechanical

D. complex

http://www.visualsunlimited.com/images/watermarked/439/439146.jpg

Digestive System

Part II

How does mechanical digestionoccur in the stomach?How does mechanical digestionoccur in the stomach?

$C:\Documents and Settings\Student\My Documents\Masterclips\CLIPART\PEOPLE\ANATOMY\ANATM012.WMF$

The stomachproduces gastricacid that helpsbreakdown food.

How does chemicaldigestion occur?

What is gastric juice made of?What is gastric juice made of?

This is what helps in thechemical digestion of food inthe stomach.

HCL is very strong acid. Whydoes it not harm the tissue ofthe stomach?HCL is very strong acid. Whydoes it not harm the tissue ofthe stomach?

A layer of mucus providesprotection from acid for thestomach.

What’s it called if the acid gets throughthe layer of mucus and damages theinside of the stomach?

$C:\Documents and Settings\Student\My Documents\Masterclips\CLIPART\PEOPLE\ANATOMY\ANATM078.WMF$

As the food leaves the stomach,it has a new name calledAs the food leaves the stomach,it has a new name called

Chyme is a thin wateryproduct that moves slowlyout of the stomach andinto the

As food enters the small intestine, breaks down the fatsand oils in the food.As food enters the small intestine, breaks down the fatsand oils in the food.

Bile is a greenish liquid thatacts like soap or detergent inhow it can break apart fats andoils. This liquid is made by the

and stored in the

Like the liver and gall bladder the is also connected tothe small intestine.Like the liver and gall bladder the is also connected tothe small intestine.

The pancreas also secretesenzymes that aid in digestion ofcarbs .

$C:\Documents and Settings\Student\My Documents\Masterclips\CLIPART\PEOPLE\ANATOMY\ANATM032.WMF$

The pancreas produces enzymes tohelp digestion. It also produces ahormone calledThe pancreas produces enzymes tohelp digestion. It also produces ahormone called

Insulin helps body cells take inglucose.

People who’s pancreas does notproduce insulin have a disordercalled

The is responsiblefor getting the nutrients from the smallintestine out to the rest of the body.The is responsiblefor getting the nutrients from the smallintestine out to the rest of the body.

But first themolecules offood have to getfrom the SmallIntestine intothe blood.

$C:\Documents and Settings\Student\My Documents\Masterclips\CLIPART\PEOPLE\ANATOMY\ANATM290.WMF$

The inside of the SI is coveredwith small fingerlike projectionscalledThe inside of the SI is coveredwith small fingerlike projectionscalled

The villi havecapillariesrunning throughthem that canabsorb thenutrients fromthe chyme.

http://www.visualsunlimited.com/images/watermarked/283/283512.jpg

Does the body use allthe food it eats?Does the body use allthe food it eats?

$C:\Documents and Settings\Student\My Documents\Masterclips\CLIPART\PEOPLE\ANATOMY\ANATM085.WMF$

Some foods likecannot be digested.Some foods likecannot be digested.

Cellulose is a kind ofcarbohydrate found in plantsand sometimes called fiber.

Fiber helps keep thedigestive systemrunning smoothly.

The part of the food (chyme) notused in the small intestinetravels to theThe part of the food (chyme) notused in the small intestinetravels to the

$C:\Documents and Settings\Student\My Documents\Masterclips\CLIPART\PEOPLE\ANATOMY\ANATM072.WMF$

There is a small organ attached tothe large intestine called theThere is a small organ attached tothe large intestine called the

The appendix essentially has nofunction but can become infectedand must be removed.

http://www.visualsunlimited.com/images/watermarked/301/301272.jpg

As the food moves through thelarge intestine isabsorbed.As the food moves through thelarge intestine isabsorbed.

As the water isextracted from the LIthe waste productbecome more

This waste product is referred to as

Where does the feces collectbefore removal from the body?Where does the feces collectbefore removal from the body?

When enoughis collected thebrain issignaled forelimination.

$C:\Documents and Settings\Student\My Documents\Masterclips\CLIPART\PEOPLE\ANATOMY\ANATM087.WMF$

Many bacteria live inside thedigestive tract. Some help usdigest food and other helpproduceMany bacteria live inside thedigestive tract. Some help usdigest food and other helpproduce

1. What is the food in the digestivetract called when the stomachpasses it to the Small intestine?1. What is the food in the digestivetract called when the stomachpasses it to the Small intestine?

A. Chyme

B. Bile

C. Insulin

D. Cellulose

2. What is the greenish fluidexcreted by the gall bladder thatbreaks down fats?2. What is the greenish fluidexcreted by the gall bladder thatbreaks down fats?

A. Chyme

B. Hydrochloric Acid

C. Feces

D. Bile

3. Where is water removedfrom the chyme?3. Where is water removedfrom the chyme?

A. Pancreas

B. Stomach

C. Small intestine

D. Large intestine

4. What is the hormone that isresponsible for absorption of glucoseand lack of it causes diabetes?4. What is the hormone that isresponsible for absorption of glucoseand lack of it causes diabetes?

A. Chyme

B. Enzyme

C. Insulin

D. Hydrochloric Acid

5. What are the finger likeprojections in the SI where nutrtientsare absorbed by capillaries?5. What are the finger likeprojections in the SI where nutrtientsare absorbed by capillaries?

A. Chyme

B. Pancreas

C. Villi

D. Cellulose

6. What organ makes bile?6. What organ makes bile?

A. Pancreas

B. Liver

C. Stomach

D. Small intestine

7. What is it in the stomach thathelps break down food?7. What is it in the stomach thathelps break down food?

A. Chyme

B. Gastric Juices

C. Insulin

D. Bile

8. What is it that cannot bebroken down and used fornutrients in the digestive system?8. What is it that cannot bebroken down and used fornutrients in the digestive system?

A. Bile

B. Chyme

C. Villi

D. Cellulose

9. What is happens when thestomach lining fails to protectthe stomach?9. What is happens when thestomach lining fails to protectthe stomach?

A. Ulcer

B. Diabetes

C. Cellulose

D. Bile

10.What’s the correct order that foodtravels through the digestive tract?10.What’s the correct order that foodtravels through the digestive tract?

A. Mouth, esophagus, stomach,L Intestine , S Intestine

B. Mouth, Stomach, Esophagus,S Intestine, L Intestine

C. Mouth, esophagus, S intestine,Stomach, L Intestine

D. Mouth, esophagus, stomach,S Intestine , L Intestine