Download Review: Circulation and Respiration

Name:
Period:
Review: Circulation and Respiration
Directions: Use the words below to complete the following description of the breathing process.
You may use a word more than once.
When you inhale, or breathe in, the
allows the
pulls down the abdomen and
to fill with air. The air enters the body through the
, where it is filtered. It may also enter through the
The air travels through the throat to the
the
.
, or windpipe. A small flap of skin called
closes over the top of the windpipe to prevent food from entering. The air also
passes through the
which contains the vocal cords. In the chest, the windpipe
divides into two branches, or
. These branches enter the
, where
they split into many small tubes. The air can now enter all parts of the lung. The
, or
tiny air sacs, are located at the ends of the tubes. These air sacs transfer carbon dioxide from the
blood to the air. The
also transfer oxygen from the air to the blood, which is then
sent back to the heart to be pumped throughout the body. When you exhale, or breathe out, the
relaxes and pushes on the chest. This forces the air containing carbon dioxide out of
the
.
Directions: Label the parts of the respiratory system.
1. ____________________________
2. ____________________________
3. ____________________________
4. ____________________________
5. ____________________________
6. ____________________________
7. ____________________________
8. ____________________________
9. ____________________________
Directions: Answer the following questions in complete sentences.
1. A red blood cell is moving through an artery in your leg. Describe the path that the blood cell
will follow back to your heart. Identify the chamber of the heart to which it will return.
2. As the red blood cell travels through the capillaries, what happens to the oxygen carried by
this red blood cell?
3. After the red blood cell returns to the heart, it travels to the lungs.
a. Why must the red blood cell travel to the lungs?
b. Is this pulmonary or systemic circulation? (Circle the correct answer.)
4. How do we get the ENERGY we need for life activities? (Refer to Figure 1 on page 431 to
complete the sentences below.)
In order for ENERGY to be released in the cells, the respiratory system
provides
and the digestive system provides
from the digested food.
The
in the circulatory system carries these
substances to each cell in the body.
In the cells, the
release ENERGY!
combines with the
to
Name:
Period:
Review: Circulation and Respiration
Directions: Use the words below to complete the following description of the breathing process.
You may use a word more than once.
When you inhale, or breathe in, the diaphragm pulls down the abdomen and allows
the lungs to fill with air. The air enters the body through the nose, where it is filtered. It may
also enter through the mouth. The air travels through the throat to the trachea, or windpipe.
A small flap of skin called the epiglottis closes over the top of the windpipe to prevent food
from entering. The air also passes through the larynx which contains the vocal cords. In the
chest, the windpipe divides into two branches, or bronchi. These branches enter the lungs,
where they split into many small tubes. The air can now enter all parts of the lung. The
alveoli, or tiny air sacs, are located at the ends of the tubes. These air sacs transfer carbon
dioxide from the blood to the air. The alveoli also transfer oxygen from the air to the blood,
which is then sent back to the heart to be pumped throughout the body. When you exhale,
or breathe out, the diaphragm relaxes and pushes on the chest. This forces the air
containing carbon dioxide out of the lungs.
Directions: Label the parts of the respiratory system.
1.
2.
3.
4.
5.
6.
7.
8.
9.
Nose
Alveoli
Bronchi
Trachea
Broncioles
Epiglottis
Lung
Diaphragm
Larynx
Directions: Answer the following questions in complete sentences.
1. A red blood cell is moving through an artery in your leg. Describe the path that the blood cell
will follow back to your heart. Identify the chamber of the heart to which it will return.
Artery to capillary to vein to inferior vena cava to the Right atrium of the heart
2. As the red blood cell travels through the capillaries, what happens to the oxygen carried by
this red blood cell?
The oxygen is dropped off along with nutrients and the blood picks up carbon dioxide and
wastes.
3. After the red blood cell returns to the heart, it travels to the lungs.
a. Why must the red blood cell travel to the lungs?
To drop off the carbon dioxide and pick up oxygen
b. Is this pulmonary or systemic circulation? (Circle the correct answer.)
4. How do we get the ENERGY we need for life activities? (Refer to Figure 1 on page 431 to
complete the sentences below.)
In order for ENERGY to be released in the cells, the respiratory system
provides Oxygen and the digestive system provides nutrients from the
digested food.
The blood in the circulatory system carries these substances to each cell
in the body.
In the cells, the oxygen combines with the nutrients to release ENERGY!