Page 1 of 27
Gas exchange and Oxygenation ATI Exam ALL
QUESTIONS AND CORRECT ANSWERS LATEST
UPDATE THIS YEAR
QUESTION: What does the respiratory system control the amount of? - ANSWER-Carbon
dioxide and oxygen in the body
QUESTION: When changes in the pH or balance of oxygen and carbon dioxide are detected in
the body, what signals these changes to the respiratory center? - ANSWER-The spinal cord
QUESTION: Define lung compliance - ANSWER-The point to which a lung can expand in
response to increase pressure within the alveoli
*** seen in diseases such as emphysema, COPD, pulmonary fibrosis, and atelectasis
QUESTION: Define airway resistance - ANSWER-The pressure opposition of the tissues in the
airway to the flow of air
QUESTION: Know the definition of inspiratory reserve volume, tidal volume, residual volume,
forced vital capacity, vital capacity, total lung capacity - ANSWER-See biology lab Quizlet in bio
139 folder for definitions
1
, Page 2 of 27
QUESTION: Define pulmonary circulation - ANSWER-The movement of blood from the heart to
the lungs from the capillaries for gas exchange and back
QUESTION: Define diastole - ANSWER-The relaxation phase of the cardiac cycle, where the
muscle is relaxed in the chambers of the heart fill with blood
***S1
Q; What organ is the respiratory system primarily driven by? - ANSWER-Lungs
QUESTION: What two gases are being exchanged in respiration? - ANSWER-Carbon dioxide and
oxygen
QUESTION: What is the job of the upper airway in the respiratory tract? - ANSWER-Structures,
warm, filter, and humidify the air taken in through the nose in the mouth
QUESTION: Where does actual gas exchange take place? - ANSWER-The alveoli
QUESTION: What is bronchoconstriction? - ANSWER-Tightening of the bronchus due to the
contraction of smooth muscle
2
, Page 3 of 27
QUESTION: What is bronchodilation? - ANSWER-Expansion of the airway of the bronchus
QUESTION: Defined the pleural cavity - ANSWER-The spacer cavity between the visceral and
parietal layers of the long filled with pleural fluid
QUESTION: Define pleura - ANSWER-A protective layer of membrane covering the lungs
QUESTION: What is the diaphragm? - ANSWER-A muscle that separates the chest cavity from
the abdominal cavity and innervated by nerves
QUESTION: What is a surfactant? - ANSWER-A lubricant made in the lungs to keep the alveoli
from collapsing during exhalation
QUESTION: What is atelectasis? - ANSWER-Collapse of airways in small sections of the lungs, as
a result of shallow breathing. The collapsing of the lung during expansion.
*** most commonly observed in the setting of thoracic or abdominal surgery
3
Gas exchange and Oxygenation ATI Exam ALL
QUESTIONS AND CORRECT ANSWERS LATEST
UPDATE THIS YEAR
QUESTION: What does the respiratory system control the amount of? - ANSWER-Carbon
dioxide and oxygen in the body
QUESTION: When changes in the pH or balance of oxygen and carbon dioxide are detected in
the body, what signals these changes to the respiratory center? - ANSWER-The spinal cord
QUESTION: Define lung compliance - ANSWER-The point to which a lung can expand in
response to increase pressure within the alveoli
*** seen in diseases such as emphysema, COPD, pulmonary fibrosis, and atelectasis
QUESTION: Define airway resistance - ANSWER-The pressure opposition of the tissues in the
airway to the flow of air
QUESTION: Know the definition of inspiratory reserve volume, tidal volume, residual volume,
forced vital capacity, vital capacity, total lung capacity - ANSWER-See biology lab Quizlet in bio
139 folder for definitions
1
, Page 2 of 27
QUESTION: Define pulmonary circulation - ANSWER-The movement of blood from the heart to
the lungs from the capillaries for gas exchange and back
QUESTION: Define diastole - ANSWER-The relaxation phase of the cardiac cycle, where the
muscle is relaxed in the chambers of the heart fill with blood
***S1
Q; What organ is the respiratory system primarily driven by? - ANSWER-Lungs
QUESTION: What two gases are being exchanged in respiration? - ANSWER-Carbon dioxide and
oxygen
QUESTION: What is the job of the upper airway in the respiratory tract? - ANSWER-Structures,
warm, filter, and humidify the air taken in through the nose in the mouth
QUESTION: Where does actual gas exchange take place? - ANSWER-The alveoli
QUESTION: What is bronchoconstriction? - ANSWER-Tightening of the bronchus due to the
contraction of smooth muscle
2
, Page 3 of 27
QUESTION: What is bronchodilation? - ANSWER-Expansion of the airway of the bronchus
QUESTION: Defined the pleural cavity - ANSWER-The spacer cavity between the visceral and
parietal layers of the long filled with pleural fluid
QUESTION: Define pleura - ANSWER-A protective layer of membrane covering the lungs
QUESTION: What is the diaphragm? - ANSWER-A muscle that separates the chest cavity from
the abdominal cavity and innervated by nerves
QUESTION: What is a surfactant? - ANSWER-A lubricant made in the lungs to keep the alveoli
from collapsing during exhalation
QUESTION: What is atelectasis? - ANSWER-Collapse of airways in small sections of the lungs, as
a result of shallow breathing. The collapsing of the lung during expansion.
*** most commonly observed in the setting of thoracic or abdominal surgery
3
