Respiratory System MCQs
Respiratory System MCQs
Try to answer these 20+ Respiratory System MCQs and check your understanding of the Respiratory System subject. Scroll down and let's begin!
1: Expiratory reserve volume + residual volume = _______ capacity.
A. 1800 mL
B. 2200 mL
C. 2100 mL
D. 3000 mL
2: Inspiration occurs when the ________ is less than the ________.
A. Intrapleural pressure; transpulmonary pressure
B. Tidal volume; vital capacity
C. Intrapulmonary pressure; atmospheric pressure
D. Thoracic cavity volume; lung volume
3: Quiet inspiration will ____ thoracic and lung volume and _____ intrapulmonary pressure.
A. Increase, decrease
B. Decrease, increase
C. None of these
4: Most inspired particles such as dust fail to reach the lungs because of the ________.
A. Diaphragm descends and rib cage rises
B. Ciliated mucous lining in the nose
C. Inspiratory reserve volume
D. Increase of carbon dioxide
5: Pulmonary endo/scop/y is best used to _____________ diseases of the respiratory system.
A. View and diagnose
B. Vital capacity
C. Lung volume
D. Tidal volume
E. Lung capacity
6: The functions of the nasal cavity include ________.
A. Warming, moistening, and filtering the air.
B. Feel like a soft sponge
C. The diaphragm and rib muscles contract.
D. Exchanged during normal breathing
7: Patients with rhinitis often have "watery eyes" because ______.
A. The infection has stimulated increased lacrimal fluid secretion by the lacrimal glands
B. The infection has caused inflammation of the nasolacrimal ducts
C. The paranasal sinuses are blocked with excess mucus
D. All of the listed responses are correct.
8: ______ is a relatively rare malignant tumor that originates in a bone.
A. An osteochondroma
B. Secondary bone cancer
C. Primary bone cancer
D. A myeloma.
9: A bunionectomy is a hallux ____ correction
A. Valgus
B. Varus
C. Eversion
D. Flexion
10: The ____________ is the amount of air remaining in the lungs after a forced expiration.
A. Residual volume
B. Tidal volume.
C. Inspiratory reserve volume.
D. Vital capacity.
11: Each 100 ml of blood leaving the alveolar capillaries carries away roughly ________ ml of oxygen.
A. 10
B. 20
C. 30
D. 50
E. 75
12: In babies born prematurely, pulmonary surfactant may not be present in adequate amounts ______.
A. In the conducting zone structures of the lungs
B. Due to insufficient exocytosis in the type II alveolar cells
C. To permit adequate surface tension in the alveoli
D. Because the presence of collapsed alveoli prevents surfactant production
13: A vasovasostomy is a surgical procedure to ________.
A. Reverse a vasectomy
B. Prevent pregnacy
C. Remove the prostate gland
D. All of this
14: Juanita's cervix is 10 centimeters dilated, so she __________.
A. Have spent time as an apprentice to a more experienced midwife
B. Second stage (delievery)
C. The baby will prefer carrot juice.
D. Has completed labor and is ready to deliver the baby
15: Doing sit ups will not reduce belly fat because __________
A. Sit-ups do not burn enough calories to reduce fat
B. Anaerobic exercises do not utilize fats
C. Sit-ups are difficult to perform regularly enough to reduce belly fat
D. Dieting is the only way to reduce belly fat
16: Factors that influence the rate and depth of breathing include ________.
A. Thalamic control
B. Voluntary cortical control
C. Stretch receptors in the alveoli
D. Composition of alveolar gas
17: Surfactant helps to prevent the alveoli from collapsing by ________.
A. Humidifying the air before it enters
B. Protecting the surface of alveoli from dehydration and other environmental variations
C. Warming the air before it enters
D. Interfering with the cohesiveness of water molecules, thereby reducing the surface tension of alveolar fluid
18: Which of the following is responsible for holding the lungs to the thorax wall are ________.
A. The visceral pleurae and the changing volume of the lungs
B. The smooth muscles of the lung
C. The diaphragm and the intercostal muscles alone
D. Surface tension from pleural fluid and negative pressure in the pleural cavity
19: Without surfactant, _______.
A. The alveoli would collapse
B. The surface tension of the liquid in the alveoli would be less and the alveoli would collapse
C. The surface tension of the liquid in the alveoli would be greater and the alveoli would collapse
D. The surface tension of the liquid in the alveoli would be greater
E. The surface tension of the liquid in the alveoli would be less
20: With an acute asthma attack, ________________ increased when compared to normal values.
A. RV
B. Acute asthma attack plus inhaler
C. Moderate exercise
D. None of these
21: Inspiration begins as __________.
A. Anatomical dead space
B. As the diaphragm contracts
C. The partial pressure differences
D. The partial pressure differences
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