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1What is the function of breathing?


2Air moves from areas of high pressure to areas of low pressure.
A)True
B)False


3What is the flow of pathway of air in the respiration system using these structures?
lungs trachea nasal cavity
bronchi pharynx bronchioles
larynx alveoli nostrils


4You inhale by expanding your lungs, which creates a _________ pressure in your lungs.
A)positive
B)negative


5What is the role of the diaphragm in inspiration?


6What is the role of the diaphragm in expiration?


7 are located between your ribs and they help expand the chest during inspiration.


8The diaphragm and intercostals muscles are skeletal muscles. Why don’t you consciously think about breathing?


9


residual volume
10


tidal volume
11


vital capacity
12


expiratory reserve volume
Answer choices:
A)air that cannot be exhaled from the lungs
B)amount of air that can be exhaled after a quiet normal exhalation
C)the total lung volume minus the air that cannot be exhaled from the lungs
D)volume of air inhaled or exhaled in a single breath


13What is the formula for IRV (inspiratory reserve volume)?


14Vital capacity varies with a person's age, weight, and health.
A)True
B)False


15Women and men do not differ in their vital capacity.
A)True
B)False


16When you hyperventilate, the CO2 concentration in your blood _________.
A)increases
B)decreases


17Which of the lung volumes changes with exercise?
A)IRV
B)RV
C)ERV
D)TV


18In a person with ________, airways are inflamed due to irritation and bronchioles are constricted due to muscle spasms.
A)asthma
B)bronchitis
C)emphysema
D)pulmonary tuberculosis


19What are several factors that cause a change in the breathing rate?





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