Name
Date
THE DIGESTIVE SYSTEM
Directions: Review the digestive system lesson. Then, answer the questions.
1. List, in order, the seven major organs that move food through your
body.
2. What is the job of the epiglottis?
3. What carries nutrients from the small intestine to the other parts of your
body?
until the body needs it.
4. The gallbladder stores
pushes food around the mouth so it has a
5. The
chance to be chewed.
6. Undigested food becomes
7. What is the liquid in your mouth called?
8. Explain why the small intestine is called "small," and the large intestine
is called "large."
9. Where does the real job of digestion take place?
10. Why is peristalsis important to your digestive system?
11. You can donate part of your liver to someone else without harming it.
Why is this possible?
12. Pancreatic juices help you digest
and
Name
VOCABULARY
The following vocabulary words are from The Human Digestive System. Fill in the number of each
word next to its closest definition.
1.
amino acids
7.
lipids
2.
bile
8.
liver
3.
carbohydrates
9.
pancreas
4.
duodenum
10. proteins
5.
gallbladder
11.
6.
hydrochloric acid
12. villi
starches
organic compounds such as fat and cholesterol
gland which secretes enzymes for all types of digestion
foods that include bread, pasta and potatoes
organ that stores bile
largest gland in the body and producer of bile
group of compounds that includes starches and sugars
aids protein digestion in the stomach
building blocks of protein
fluid which breaks down fats in the small intestine
main building material of all cells
fingerlike projections that increase surface area of the small intestine
first portion of the small intestine
18
Name
THE DIGESTIVE SYSTEM
Label the diagram above using the following terms: liver, rectum, pancreas, stomach
gallbladder, esophagus, duodenum, small intestine.
Where does bile go after it leaves the gallbladder?
3.
Which organ is primarily responsible for protein digestion?
Where does fat digestion begin?
5.
Where does starch digestion begin?
19
Date
Name
TAKE A DEEP BREATH
Directions: Write the answer that fits each description in the blanks. Then, use
the numbers under the answers to solve the word puzzle on the next page.
1. gas needed by every cell in your body
12
3
2. gas produced as a waste product
26
8
6
21
the other waste released by the lungs
25 27
4, the throat
10
9
5. voice box
2
13
6. windpipe
14
28
7
18
Date
Name
TAKE A DEEP BREATH
page 2
7, two large organs in the chest
20
11
8. lead from trachea into lungs
19
15
16
17
24
9. tiny air sacs
4 22 5
10. large muscle on floor of chest cavity that helps you breathe
23
1
29
Word Puzzle
The purpose of the respiratory system is to:
1
234567
16 17 18
8 9 10 11 12 13
19 20 21 22 23 24 25 26 27 28 29
14 15
Date
Name
NAME THAT PART
Directions: Use words from the word bank to label the major parts of the
respiratory system on the diagram. Write your answers in the blanks.
Word Bank
6
7
1
8
2
3
10
4
The walls of the alveoli and capillaries are thin enough to allow the
exchange of gases. In your lungs, blood exchanges carbon dioxide
for oxygen. Oxygen passes into the bloodstream through the walls of
the alveoli. Waste products (carbon dioxide and water) pass out of the
bloodstream into the air as they move through the alveoli.
Breathing In and Breathing Out
Breathing involves two main activities: inhaling and exhaling. Inhaling
pulls air (and oxygen) into the lungs. Exhaling pushes air out of the
lungs, taking water and carbon dioxide with it. The lungs do not inhale
and exhale on their own because they are not made of muscles.
The movement of air in and out of the lungs happens because of the
diaphragm. This is the large muscle on the floor of the chest cavity that
causes breathing. When you inhale, the diaphragm pulls air into your
lungs. As the diaphragm contracts, the chest expands and air rushes
into the lungs. As the diaphragm relaxes, the chest shrinks and causes
air to leave the lungs.
if the diaphragm contracts more quickly than usual, your breaths come
in gasps and make a "hic" sound. You have the hiccups.
Inhalation
Exhalation
air goes Into
the lungs
chest
expands
air leaves the
chest
contracts
diaphragm
contracts
relaxes
Date.
Name
Directions: Use words from the word bank to complete the sentences.
Some words are used more than once.
Word Bank
There are five major organs in the (1)
They are the (2)
., the (3)
the (4)
, (5) the
system.
, and the
(6)
(7)
is produced in the kidneys. As the urine leaves
the kidneys, it travels through the (8)
and into
the (9)
, where it is stored until a person uses
the bathroom. The urine leaves the bladder and flows through the
(10)
to the outside of the body.
Other parts of the excretory system, the (11)
, are
also part of the respiratory system. When the body uses food for energy,
(12)
and water are produced as waste products.
The water is given off through the largest organ of the body, the
(13)
. (14)
helps control the
body’s temperature and removes extra (15)
from
the cells.
The (16)
systems. (17)
the (18)
is part of the digestive and excretory
leave the large intestine through
3
Name
Date
THE EXCRETORY SYSTEM
The Kidneys
Directions: Place the words from the box at the bottom of the page next to the appropriate lines
on the diagram.
Kidney
Ureter Bladder Urethra Adrenal Glands
THE EXCRETORY SYSTEM
from the Human Body Systems Series
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