HCS
1070
Section 1
Section 2
Section 3
Section 4
Section 5
TOTAL
PERCENT
15
35
20
35
20
125
T
R
S

This resource is an adaptation of materials and information developed by
Frank Spragins Outreach School, Bozeman Science video clips, WebMD, the
Mayo Clinic and Your Body and How It Works Science Reproducible Activity
Book.
2 Student Assignment Booklet | HCS 1070

SECTION 1: A BREATH OF FRESH AIR – THE RESPIRATORY SYSTEM
④ Multiple Choice – Read each statement and choose the best answer.
1. What is the respiratory system? a) The body’s breathing system b) The body’s system of nerves c) The body’s food-processing system d) The body’s blood-transporting system
2. What is the function of the respiratory system? a) To provide the body with the enzymes and hormones needed to
function. b) To exchange gases between the external environment and the body’s
cardiovascular system c) To provide the body with essential nutrients d) All of the above
3. To go on living, the body’s cells need food, water, chemicals and _____. a) carbon dioxide b) hemoglobin c) vitamins d) oxygen
4. The sole activity of the respiratory system is breathing. a) True b) False
HCS 1070 | Student Assignment Booklet 3

⑤
5. How long can people live without food? __________________________
How long can people live without water? _________________________
How long can people live without oxygen? _______________________
Explain this difference. _______________________________________
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②
6. What are the two main functions of the respiratory system.
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④
7. Fish are able to breathe underwater. Explain how this is possible and how this process of respiration differs from human respiration.
(Hint: View the Bozeman Science video.)
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4 Student Assignment Booklet | HCS 1070

SECTION 2: WHO “NOSE” THE PARTS OF THE RESPIRATORY SYSTEM
⑪
1. Label the parts of the respiratory system.
1. ______________________ 7. ______________________
2. ______________________ 8. ______________________
3. ______________________ 9. ______________________
4. ______________________ 10. ______________________
5. ______________________ 11. ______________________
6. ______________________
HCS 1070 | Student Assignment Booklet 5

⑤
2. What is the more common name for each of these parts of the respiratory system? a) Trachea _______________ b) Nasal Cavity ______________ c) Cilia _________________ d) Pharynx __________________ d) Larynx _______________
⑧ 3. Match each part of the respiratory system to the correct phrase.
____ bronchi
____ alveoli
____ pharynx
____ larynx
____ lungs
____ diaphragm
____ epiglottis
____ nasal cavity a) a large muscle that separates the chest cavity from the abdominal
cavity and helps with breathing b) a tube that carries air down to the trachea c) these tubes transport air into the lungs d) a flap over the trachea that keeps out food e) the major organs of the respiratory system where gas exchange
takes place f) the space at the end of each bronchiole enclosed by a multitude of
air pockets g) folds of tissue that produce sounds when air passes through them h) one of the ways oxygen can enter the body
6 Student Assignment Booklet | HCS 1070

③
4. List the three jobs done by the blood vessels, cilia, and mucus in the nasal cavity.
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⑧ Multiple Choice – Read each statement and choose the best answer.
5. Air can enter the body and travel to the lungs ___________________. a) through the mouth and nose. b) through the esophagus and sinuses. c) through the windpipe and pores. d) through the nose and the nervous system.
6. After working outdoors in the garden, you come indoors and blow your nose to find dirt in the mucus. What function of the respiratory system is your nose performing? a) adding moisture to the air b) filtering the air c) warming the air d) causing an allergic reaction
7. The nasal cavities empty into the ____________. a) larynx b) trachea c) pharynx d) epiglottis
HCS 1070 | Student Assignment Booklet 7

8. The epiglottis opens only during ____________________. a) inhalation b) exhalation c) speaking d) swallowing
9. The __________________ is held open by c-shaped cartilaginous rings. a) larynx b) trachea c) epiglottis d) bronchial tubes
10. What happens to the trachea before it reaches the lungs? a) It branches in two directions. b) It branches in three directions. c) It vibrates and creates sounds. d) It closes up so that no oxygen can escape.
11. The bronchi branch into smaller passages called _________________. a) alveoli b) bronchioles c) microtrachea d) eustachian tubes
12. The lungs are enclosed by the ____________________. a) bronchiole membranes b) pleural membranes c) diaphragm d) sternum
8 Student Assignment Booklet | HCS 1070

SECTION 3: WHAT IS BREATHING?
⑫ Multiple Choice – Read each statement and choose the best answer.
1. What important activity takes place in the lungs? a) Food is digested. b) Liquid waste is filtered from the blood. c) Oxygen is exchanged for carbon dioxide. d) Carbon dioxide binds on to the hemoglobin in the red blood cells.
2. When we breathe in, we inhale many gases, including oxygen. What happens to the gases that the body can’t use? a) They are exhaled. b) They are changed into oxygen by the process of diffusion. c) They circulate through the body and are absorbed by body tissue. d) They are absorbed into the digestive system and used to create
energy.
3. Which of the following is the correct pattern of airflow during inhalation? a) nasal cavity, pharynx, larynx, trachea, bronchi, bronchioles b) pharynx, bronchi, trachea, lungs c) nasal cavity, larynx, pharynx, trachea, bronchioles, bronchi d) larynx, pharynx, trachea, bronchi, bronchioles
4. During inhalation, the following occurs: a) diaphragm muscles contract b) intercostal muscles contract c) the lungs expand and air rushes in d) all of the above
HCS 1070 | Student Assignment Booklet 9

5. Contraction of the intercostal muscles and diaphragm cause the chest cavity to __________ and the air pressure in the lungs to __________. a) expand; increase b) contract; increase c) contract; decrease d) expand; decrease
6. During expiration, _______________ pressure in the chest cavity causes air to leave the lungs. a) increased b) decreased c) pneumatic d) hydraulic
7. In a relaxed state, the diaphragm is ___________________. a) horizontally flattened b) folded like a map c) V-shaped d) dome-shaped
8. The diaphragm and intercostal muscles are ________________ when expiration occurs. a) contracted b) relaxed c) flexed d) both relaxed (diaphragm) and contracted (intercostal muscles)
10 Student Assignment Booklet | HCS 1070

9. The breathing center _______________________________. a) is stimulated by oxygen levels. b) is located in the chest cavity. c) sends nerve impulses directly to the alveoli. d) is located in the medulla.
10. The rate of breathing is primarily controlled by the _____________. a) demand for carbon dioxide by the tissues. b) concentration of oxygen in the blood. c) demand for oxygen by the tissues. d) concentration of carbon dioxide in the blood.
11. The aortic and carotid peripheral chemoreceptors respond to changes in the concentration of _________________. a) carbon dioxide b) hemoglobin c) oxygen d) carbonic acid
12. When blood levels of carbon dioxide rise, the rate and depth of breathing __________________. a) decreases b) increases c) stays the same d) stops
HCS 1070 | Student Assignment Booklet 11

⑧
True/False – Mark each statement true (T) or false (F). If the statement is false, replace the bolded word(s) to make it true.
13. ____ Air flows in the process of pulmonary ventilation because of pressure differences between the atmosphere and the gases inside the lungs.
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14. ____ Intrapleural pressure is the pressure inside the alveoli of the lungs while intraalveolar pressure is the pressure within the pleural cavity.
_________________________ _________________________
15. ____ The amount of air that is exchanged during one respiratory
cycle varies with age, sex, size, and physical condition.
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16. ____ As the chest cavity increases in size, the lungs expand and air
is forced out.
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17. ____ Hyperventilation is breathing that is too slow or too shallow to meet the body’s needs.
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12 Student Assignment Booklet | HCS 1070

SECTION 4: RESPIRATION – WHAT IS IT?
⑨
1. Name and describe the three phases of respiration. a) ____________________________
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_________________________________________________________ b) ____________________________
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_________________________________________________________ c) ____________________________
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⑤ 2. Fill in the blank boxes with chemical formulas and names to complete the equation for cellular respiration.
+ 6 6 + 6 +
+ 6 6 + 6 +
HCS 1070 | Student Assignment Booklet 13

④
3. Explain how both the digestive system and the cardiovascular system work with the respiratory system in the sequence for respiration.
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⑧
True/False – Mark each statement true (T) or false (F). If the statement is false, replace the bolded word(s) to make it true.
4. ____ The exchange of gases between the blood and tissue cells is external respiration.
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5. ____ Cells continuously use up oxygen in cellular respiration.
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6. ____ During internal respiration, hemoglobin gives up carbon dioxide to the cells.
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7. ____ Carbon dioxide diffuses out of blood into the alveoli.
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8. _____ Blood comes into the pulmonary capillaries as oxygenated and alveolar air is deoxygenated.
_________________________ _________________________
14 Student Assignment Booklet | HCS 1070

⑨
Multiple Choice – Read each statement and choose the best answer.
9. The exchange of gases between inhaled air and blood is referred to as
_______________________. a) cellular respiration. b) external respiration. c) internal respiration. d) cardiovascular respiration.
10. Nearly all of the oxygen is carried in the blood as _________________. a) gaseous oxygen b) becarbonate c) oxyhemoglobin d) erythroglobin
11. Which gas is carried mostly by the plasma? a) carbon dioxide b) oxygen c) both carbon dioxide and oxygen d) neither carbon dioxide or oxygen
12. __________________ refers to the exchange of gases between blood in systemic capillaries and tissue cells. a) Internal respiration b) External respiration c) Cellular respiration d) Cardiovascular respiration
HCS 1070 | Student Assignment Booklet 15

13. The exchange of oxygen and carbon dioxide between blood and the alveoli is governed by ___________________. a) gravity b) blood pressure c) diffusion d) active transport
14. Blood flowing into lung capillaries has a higher concentration of
__________________ than the air in the lungs. a) oxygen b) carbon dioxide c) both oxygen and carbon dioxide d) water
15. During ______________ respiration, hemoglobin combines with oxygen in the lungs. a) internal b) external c) cellular d) cardiovascular
16. Blood in systemic capillaries is bright red because ______________. a) red cells lack oxyhemoglobin b) red cells contain oxyhemoglobin c) red cells contain carbon dioxide d) red cells lack carbon dioxide
17. Each alveolar sac is surrounded by ______________________. a) arterioles b) venules c) capillaries d) pleural membranes
16 Student Assignment Booklet | HCS 1070

2.
NAME
1.
SECTION 5: PATHOLOGY AND TREATMENT OF RESPIRATORY
CONDITIONS
⑳ In your student coil module booklet, the following eight respiratory diseases were introduced.
 Asthma
 COPD
 Bronchitis
 Cystic Fibrosis
 Emphysema
 Pneumonia
 Tuberculosis
 Lung Cancer
Another five respiratory disorders covered in the video clip “Respiratory
Diseases”, were not taught in the student coil module booklet. Use this video clip and independent research skills to complete the following chart for the five missing respiratory conditions.
SYMPTOMS CAUSES TREATMENTS
HCS 1070 | Student Assignment Booklet 17

NAME
4.
3.
5.
SYMPTOMS CAUSES TREATMENTS
18 Student Assignment Booklet | HCS 1070