Human Digestive System

Human Digestive System
Read the text below, color code the following digestion diagram.
Functions of the digestive system:
1. Eat food.
2. Digest food and force it down the digestive tract.
3. Take in nutrients.
4. Get rid of waste.
Or"9ans that
food will really pass through
after
it enters
the body.
Color these organs green.
A.
Mouth: its job is to tear and break up food into pieces small enough to swallow.
C.
Esopha<JUs: a muscular tube that connects the mouth to the stomach.
D. Stomach: a muscular pouch-like enlargement that squeezes, sloshes, and mixes
the food. Two digestive enzymes, hydrochloric acid and pepsin, are released to
change the food into a tomato soup consistency.
E. Small Intestines:
it is 2.5cm in diameter but over 6 meters long. Food moves
slowly (3-5 hours) through here where its nutrients are absorbed into the body.
F. Large Intestines:
it is 6.5cm in diameter but only 1.5 meters in length.
Whatever undigested food was not absorbed is passed into here where it may sit
from 18 to 24 hours before it leaves the body. Water is absorbed out and only solid
waste is left. Helpful bacteria live here and will put together certain needed
vitamins (Vitamins B and K).
G.
Rectum: where the solid waste collects so it can leave the body.
H.
Anus: the opening where solid waste leaves the body.
Organs that food never passes through.
Color these organs red.
but they help durin<J digestion.
B. Salivary glands: three pairs of glands in the mouth that release a liquid that is
called saliva. Saliva moistens and begins to break down food with a digestive enzyme
called Amylase.
I. Pancreas: produces enzymes that are released into the small intestines that
break down carbohydrates, proteins, and fats. It makes a solution to help neutralize
stomach acid.
J.
Liver: produces bile which breaks down fat into small droplets.
solution to neutralize stomach acid.
,
K. Gallbladder:
l.
It also makes a
stores the bile that is released into the small intestines.
Appendix: found where the small and large intestines meet. It has no know
function in digestion. If it becomes inflamed or infected, it is called appendicitis.
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Date
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THE ANATOMY OF THE HUMAN DIGESTIVE SYSTEM
Instructions:
(1.) Read the text and the descriptions. (2.) Use the text and the descriptions to help you to label the diagram and to answer the questions. Colol'" (Ode It.
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The job of your digestive system is to take nutrients from the foods you eat so that
the cells of your body can use them. If for some reason your digestive system could not
do this, you would become malnourished and younhealth would deteriorate.
While completing this project, you will learn to name the different parts of the
digestive system and learn how these parts work together to utilize the nutrients in
the foods you eat.