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Name__________________________________ period _____ date assigned_____________ date due ______________ date returned ___________
The Respiratory System
Match the following vocabulary words to their definition. Please write a capital letter in the blank.
- pharynx
A. passages that direct air into the lungs.
- larynx
B. connects the pharynx to the bronchi. It is lined with mucus and small hairs that trap particles.
- respiration
C. smallest structure in the lungs where gas exchange takes place between the lungs and the blood.
- cellular respiration
D. (throat) is a long hollow tube that connects the nose to the trachea.
- diaphragm
E. part of the throat where the vocal cords are located.
- alveoli
F. (break down of glucose for energy) requires oxygen as a reactant.
- bronchioles
G. smaller branches that come off of the bronchi.
- trachea
H. dome-shaped muscle below the lungs that causes us to inhale and exhale.
- bronchi
I. the transport of oxygen from outside the body to cells and tissues, and the transport of carbon dioxide and wastes away from cells and to the environment.
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USE THIS DIAGRAM TO ANSWER QUESTIONS 10-
10 How does the structure of the alveoli help process 1 in the diagram?
A small patterns on the surface of the alveoli correspond with the shapes of CO 2 and O 2 molecules and allow them to enter
B smooth, rounded membranes of the alveoli allow gas molecules to flow in and our freely
C the hollow interior of the alveoli has ample space for unlimited gas molecules
D thin walls of the alveoli let molecules of CO 2 and O 2 pass through easily
11 What two body systems are interacting in this diagram?
F respiratory-excretory
G digestive-circulatory
H respiratory-circulatory
J nervous-endocrine
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18 Which statement best describes the function of this human body system?
A breaks down food into nutrients and wastes
B supplies O^2 to the blood, which in turn delivers O^2 to all parts of the body
C endocrine and reproductive
D nervous and digestive
19 This table shows approximate amounts of gases inhaled and exhaled by humans. What conclusion can you draw from this information?
F Inhaled air contains less oxygen and more carbon dioxide than exhaled air.
G Inhaled air^ contains more oxygen and less carbon dioxide than exhaled air.
H Inhaled air contains more oxygen and more carbon dioxide than exhaled air.
J Inhaled air contains the same amount of nitrogen and carbon dioxide as exhaled air.
Gas Inhaled Air Exhaled Air nitrogen 78% 78% oxygen 21% 16% carbon dioxide 0.03% 4%
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20 This diagram shows one way in which two different body systems interact. Which statement identifies the two body systems that are interacting and describes what is happening.
A The alveoli in the respiratory system and the capillaries in the^ circulatory system are exchanging oxygen and carbon dioxide.
B The alveoli in the muscular system and the capillaries of the circulatory system are exchanging oxygen and nitrogen.
C The capillaries of the circulatory system and the alveoli of the excretory system are exchanging nitrogen and carbon dioxide.
D The capillaries of the circulatory system and the alveoli of the nervous system are exchanging carbon dioxide and carbon monoxide.
Gases Exchanged
alveoli capillaries
22 Which body system moves oxygen into the blood and removes carbon dioxide from the blood?
A excretory
B digestive
C respiratory
D skeletal
21 Which of the following best describes the alveoli?
F a single tube that connects the larynx to the lungs
G tiny sacs where oxygen and carbon dioxide are exchanged
H a passageway that leads from the mouth to the top of the trachea
J two folds of tissue stretched over the airway that vibrate to produce sound.
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25 The diagram below shows the main parts of the respiratory system?
Which of these correctly names the parts of the respiratory system numbered 1-5 in the diagram above?
F 1. larynx. 2.pharynx, 3. trachea, 4. bronchi, 5. alveoli
G 1. pharynx, 2. larynx, 3. trachea, 4. bronchi, 5. alveoli
H 1. pharynx, 2. larynx, 3. bronchi, 4. trachea, 5. alveoli
J 1. larynx, 2. trachea, 3. pharynx, 4. alveoli, 5. bronchi
