The ________ of the lungs is an indication of their expandability, how easily the lungs expand and contract.
A) compliance
B) ventilation
C) volume
D) intrapulmonary pressure
E) cellular respiration
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Question 2) Each gustatory cell extends ________ (called taste hairs) into the surrounding fluids through a narrow taste pore.
A) microvilli
B) villi
C) papillae
D) palpebra
E) G proteins
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Question 3) When the inspiratory muscles relax, the rib cage returns to its original position as a result of
A) exhalation.
B) gravity.
C) elastic rebound.
D) accessory muscle contraction.
E) partial pressure difference.
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Question 4) Taste buds are clusters of individual
A) vallate papillae.
B) gustatory hairs.
C) epithelial cells.
D) olfactory receptors.
E) gustatory receptors.
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Question 5) Which of the following can be calculated if the tidal volume and respiratory rate are known?
A) respiratory minute volume
B) inspiratory reserve volume
C) expiratory reserve volume
D) anatomical dead space
E) forced vital capacity
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Question 6) The membrane structures that respond to chemical stimuli to produce sweet, bitter, and umami sensations are called
A) gustatory hairs.
B) chemically-gated ion channels.
C) voltage-regulated ion channels.
D) G proteins.
E) papillae.
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Question 7) While playing in an intramural football game, Joe is tackled so hard that he breaks a rib. He can actually feel a piece of the rib sticking through the skin and he is having a difficult time breathing. Joe is probably suffering from
A) a collapsed trachea.
B) an obstruction in the bronchi.
C) a pneumothorax.
D) decreased surfactant production.
E) a bruised diaphragm.
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Question 8) The sense of taste is also known as
A) proprioception.
B) maculation.
C) gustation.
D) olfaction.
E) sublation.
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Question 9) As an astronaut is lifted into Earth's orbit, what is the first change to take place in response to the drop in cabin pressure?
A) increased hematocrit
B) renal hypoxia
C) increased alveolar ventilation rate
D) decreased alveolar PO2
E) decreased hemoglobin saturation
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Question 10) The taste sensation that is triggered by the amino acid glutamate is known as
A) sweet.
B) umami.
C) salty.
D) peppery.
E) sour.
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