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  • NUR 2060: Eyes, Ears, Skin
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Respiratory System Assignment (1)

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Respiratory System Assignment (1)

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Respiratory System Assignment
PCO2 is greatest in which of the following locations? - ANS-alveoli

Negative intrapulmonary pressure results in: - ANS-inspiration

The smallest conducting passageways of the lungs are known as: - ANS-bronchioles

The _________ zone includes the respiratory bronchioles, alveolar ducts, alveolar sacs, and
alveoli and is where gas exchange occurs. - ANS-respiratory

The process of moving air in and out of the lungs is called: - ANS-pulminary ventilation

The most important stimulus for breathing in a healthy person is the body's need to rid itself of
the blood gas called ________. - ANS-carbon dioxide

The correct pathway air flows through the respiratory system is ________. - ANS-nose, trachea,
main (primary) bronchi, bronchioles, alveoli

Which one of the following is NOT true of inspiration? - ANS-relaxation of the external
intercostal muscles helps increase the size of the thoracic cavity

Most carbon dioxide dissolves in blood plasma for transport as ________. - ANS-bicarbonate
ion

According to the laws of diffusion, movement of a respiratory gas occurs from area of low
toward the area of higher concentration of that particular respiratory gas. - ANS-false

Exchange of both oxygen and carbon dioxide through the respiratory membrane occurs by
________. - ANS-simple diffusion

Which statement about CO2 is FALSE? - ANS-More CO2 dissolves in the blood plasma than is
carried as bicarbonate.

The PCO2 of blood in the venules is the same as in the veins. - ANS-true

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