Title: Digestive System
1Digestive System
2Health Article ONLINE!
3Today we are going to discuss the digestive
system!
4Now, you must understand that lipids (fats),
carbohydrates, proteins, and nucleic acids are
essential macromolecules to the human body.
5First, you eat!
6An apple for example
7crunch
So the digestive process begins!
8Now the piece of the apple is being chewed up and
broken down by teeth and saliva.
crunch
9Thats why you take good care of your teeth! They
help you a lot during the digestive process!
10Look at those teeth! Dont forget to brush!!!
11Saliva is an enzyme that starts the process of
breaking down food. Saliva breaks down
carbohydrates.
12Note Chemical and Mechanical are the two types
of digestion.
This digestion is both chemical and mechanical.
Chemical because of the saliva and mechanical
because of the teeth grinding down the food.
13Now guess where it goes!
14gulp
Correct! The pharynx.
15gulp
The pharynx is an example of mechanical
digestion.
16The pharynx is right here!
17Right, now comes the esophagus!
18Mechanical digestion occurs in the esophagus.
19And your esophagus is located here.
20The esophagus carries food to the stomach through
a process called peristalsis.
21Now the food is in the stomach!
gurgle
22Within the stomach, mechanical and chemical
digestion occurs. The gastric juices are the
chemical. The churning and mixing is mechanical
digestion.
gurgle
23The stomach chemically digests proteins from the
food!
gurgle
24And here is the location of the stomach.
25Next, it goes to the small intestine.
26In the small intestine, both chemical and
mechanical digestion take place.
27Proteins, carbohydrates, and fats are chemically
digested in the small intestine.
28So this is where we find the small intestine.
29The next organ in line is the pancreas!
30Chemical digestion comes about in this organ.
31So here is the pancreas.
32Now, we have the liver!
33The liver is an example of chemical digestion.
34In the liver, all alcohol consumed is filtered to
prevent it from entering the bloodstream.
35This is where we find the liver!
36Lastly, we have the large intestine or colon!
37Chemical and mechanical digestion take place
here.
38Now this is where the large intestine is found.
39All the nutrients that are absorbed through this
process wind up in the bloodstream, where cells
absorb them.
40Foods that are high in lipids are.
Mixed Nuts
Butter
Cheese (Cheddar)
41Foods that are high in carbohydrates are.
Wheat
Corn
Oatmeal
42Fish
Foods that are high in proteins are.
Milk
Spinach
43Foods that are high in nucleic acids are.
Root Vegetables
Soy Milk
Soy Beans
44Come back to our site anytime!!!
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46Credits
http//www.fatfreekitchen.com/nutrition/high-prote
in-foods.html http//www.weightlossforall.com/com
plex-carbs.htm http//www.indiadiets.com/foods/fo
od_nutrients/high_fat_foods.htm http//wiki.answe
rs.com/Q/What_foods_contain_nucleic_acid http//w
ww.thermalogic.biz/assets/photos/soy_beans.jpg ht
tp//en.wikipedia.org/wiki/FileBiological_cell.sv
g Wikipedia.com (for pictures)