In this sagittal section showing the upper respiratory tract, what number indicates a nasal concha?
A. 1
B. 2
C. 3
D. 4
E. 5
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Question 2) In this sagittal section showing the upper respiratory tract, what structure does number 4 indicate?
A. Uvula
B. Soft palate
C. Hard palate
D. Nasal concha
E. Epiglottis
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Question 3) In this closeup image of a lung, what structures are indicated by number 4?
A. Respiratory bronchioles
B. Alveolar ducts
C. Alveoli
D. Terminal bronchioles
E. Bronchioles
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Question 4) In this sagittal section showing the upper respiratory tract, what structure does number 5 indicate?
A. Uvula
B. Soft palate
C. Hard palate
D. Nasal conchae
E. Nasal bone
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Question 5) Imagine that someone is climbing a mountain on a very hot day. As their muscles work, acidic by-products are generated.
Describe the relevant responses of the respiratory system and also describe how the affinity for hemoglobin will change under these conditions.
What will be an ideal response?
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Question 6) An actively contracting muscle will cause local temperature to rise and will produce acidic molecules. Warmth and lower pH cause the oxygen-hemoglobin saturation curve to shift ______ reflecting that hemoglobin releases ______ oxygen.
A.
left; more
B.
left; less
C.
right; more
D.
right; less
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Question 7) The main stimulus that drives increased breathing during exercise is a drop in blood levels of oxygen.
Indicate whether this statement is true or false.
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Question 8) Airway obstruction can lead to hypoventilation, which can cause
A. hypoxia and respiratory acidosis.
B. hypocapnia and respiratory alkalosis.
C. hypocapnia and hyperpnea.
D. hypoxia and respiratory alkalosis.
E. hypocapnia and respiratory alkalosis.
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Question 9) When someone exercises vigorously, their breathing is described as demonstrating
A. hyperpnea, involving deeper but not faster breathing.
B. hyperventilation, involving both deeper and faster breathing.
C. bradypnea, involving deeper and slower breathing.
D. hypopnea, involving shallower but faster breathing.
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Question 10) What changes in the blood levels of respiratory gases result from hyperventilation?
A. Oxygen and carbon dioxide levels rise.
B. Oxygen and carbon dioxide levels fall.
C. Oxygen levels rise and carbon dioxide levels fall.
D. Oxygen levels do not change but carbon dioxide levels fall.
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