$$C_6H_{12}O_6$ + 6O_2 \rightarrow 6CO_2 + 6H_2O + \text{energy}$$

Question 1

Which of the following best describes the primary function of the respiratory system?

Accepted Answer

To supply the body with oxygen for cellular respiration and remove carbon dioxide waste

Question 2

Pulmonary ventilation refers to which of the following processes?

Accepted Answer

Movement of air into and out of the lungs

Question 3

During external respiration, what is the main event occurring?

Accepted Answer

Exchange of $$O_2$$ and $$CO_2$$ between lungs and blood

Question 4

Which of the following is NOT considered part of the upper respiratory tract?

Accepted Answer

Larynx

Question 5

A patient with impaired gas exchange between the alveoli and pulmonary capillaries is most likely experiencing a problem with which process?

Accepted Answer

External respiration

Question 6

Which equation best represents the overall process of cellular respiration that the respiratory system supports?

Accepted Answer

$$C_6H_{12}O_6$ + 6O_2 ightarrow 6CO_2 + 6H_2O + 	ext{energy}$$

Question 7

Which structure is responsible for the exchange of gases between the lungs and the blood?

Accepted Answer

Alveoli

Question 8

If a person has a blockage in the trachea, which process of respiration is directly affected first?

Accepted Answer

Pulmonary ventilation

Question 9

Which of the following best describes internal respiration?

Accepted Answer

Exchange of $$O_2$$ and $$CO_2$$ between systemic blood vessels and tissues

Question 10

Which of the following is a lower respiratory tract organ?

Accepted Answer

Trachea

Question 11

A person with damage to their alveoli would most likely have difficulty with which process?

Accepted Answer

External respiration

Question 12

Which process is most directly responsible for the movement of $$O_2$$ from the atmosphere into the alveoli?

Accepted Answer

Pulmonary ventilation

Question 13

Which of the following is the correct sequence of events for respiration?

Accepted Answer

Pulmonary ventilation → External respiration → Transport of gases → Internal respiration

Question 14

Which organ is NOT involved in the conduction of air but is essential for gas exchange?

Accepted Answer

Alveoli

Question 15

If the circulatory system fails to transport $$O_2$$ efficiently, which process of respiration is compromised?

Accepted Answer

Transport of respiratory gases

Question 16

Which of the following is a function shared by both the respiratory and circulatory systems?

Accepted Answer

Transport of $$O_2$$ and $$CO_2 in $$the blood

Question 17

A patient with impaired function of the pharynx would most likely have difficulty with which aspect of respiration?

Accepted Answer

Pulmonary ventilation

Question 18

Which of the following best explains why speech is considered a secondary function of the respiratory system?

Accepted Answer

Speech is produced by the movement of air through the larynx

Question 19

Which structure is the first to encounter inhaled air in the respiratory system?

Accepted Answer

Nose and nasal cavity

Question 20

Which process is directly responsible for the exchange of $$CO_2$$ between systemic blood vessels and tissues?

Accepted Answer

Internal respiration

Chapter 22 Part A: The Respiratory System – Structure and Function

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