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☕️ Coffee - QUIZ 04: GAS EXCHANGE, PERFUSION, AND ALVEOLAR VENTILATION; REGULATION OF RESPIRATION AND RESPIRATORY REFLEXES [page 220] - Module 5 SGD 2: Gas Exchange, Perfusion and Alveolar Ventilation [page 490]

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Published	01/14/2024	In emphysema, which of these adversely affect the rate of diffusion of gases across the respiratory membrane? A. Diminished surface area …
Published	01/14/2024	Which of the following is true regarding the factors that control the concentration and partial pressure of oxygen in the alveoli? A. Incre…
Published	01/14/2024	The volume of alveolar air that is renewed by the atmospheric air with each inspiration is A. 150 ml B. 250 ml C. 350 ml D. 500 ml
Published	01/14/2024	On a dark stormy night, Vina was alone in the music room during her last-minute practice for the piano recital. She suddenly shrieked at the sound …
Published	01/14/2024	Which of the following occurs when the muscles and tendons are excessively stretched? A. Hyperpnea  B. Sigh C. Apnea D. Bradypnea
Published	01/14/2024	The peripheral chemoreceptors are most sensitive to changes in blood A. pH B. CO2 C. HCO3  D. O2
Published	01/14/2024	Which of the following combinations is correct? A. Po2 in the tissue – 40 mm Hg B. Pco2 in the venous end of pulmonary capillaries – 40 mm Hg…
Published	01/14/2024	Stimulation of stretch receptors in the lung will produce the sigh response as an effect of the A. Hering-Breuer Deflation Reflex B. Hering-Br…
Published	01/14/2024	When the hemoglobin dissociation curve is shifted to the right there isA. decreased O2 saturation, decreased Po2 B. increased O2 saturation, decrea…
Published	01/14/2024	Difficulty of breathing while on the supine position is A. apneusis B. dyspnea C. platypnea D. orthopnea
Published	01/14/2024	Which of these statements is true to both the sneeze and cough reflexes? A. Location of stimulus B. Location of receptors C. Bronchoconstr…
Published	01/14/2024	The following occurs during heavy exercise A. Alveolar ventilation is decreased B. There is increased CO2 production and blood pH incr…
Published	01/14/2024	If the partial pressure of a particular gas chamber A is 35 mm Hg and in chamber B is 85, which of the following is correct? A. The gas will diffu…
Published	01/14/2024	Which of these immediately happens when a person A. Apnea  B. Bronchoconstriction C. Tachycardia D. Vasodilation
Published	01/14/2024	Which of these neurons provide powerful expiratory signals to the abdominal muscles during forceful expiration? A. Apneustic center B. Dorsal …
Published	01/14/2024	Activation of the pneumotaxic center will result to increasedA. breath-holding rate B. respiratory rate  C. duration of inspiration D. …
Published	01/14/2024	Which of these events occurs in the glomus cell because of hypoxemia? A. Acetylcholine releaseB. ATP hydrolysis C. Closure of Ca++ channel  …
Published	01/14/2024	In which of the following conditions will there be a decreased dissociation of oxygen and hemoglobin? A. A child with fever B. A pregnant pati…
Published	01/14/2024	The following are true with chronic obstructive pulmonary disease (COPD) A. In areas distal to the obstruction the ventilation perfusion ratio is …
Published	01/14/2024	Which of the following is true regarding solubility coefficient of gases? A. Nitrogen is more soluble than oxygen B. Oxygen is 20x more soluble th…
Published	01/14/2024	Which of the following shows the correct relationship between interstitial fluid partial pressure, blood flow, and tissue metabolism? A. Increas…
Published	01/14/2024	Hyperpnea occurs in response to stimulation of which set of receptors? A. Proprioceptors and baroreceptors B. Baroreceptors, J receptors and n…
Published	01/14/2024	Which of the following is true regarding the diffusing A. The diffusing capacity of oxygen can increase fivefold during exercise B. At rest, the …
Published	01/14/2024	Hyperpnea is different from hyperventilation because in hyperpnea A. there is an increase in the rate of respiration B. there is an increase i…
Published	01/14/2024	The central chemoreceptors are stimulated by an increase in blood A. CO2  B. O2 C. H D. Ca
Published	01/14/2024	Which of the following is true regarding factors that determine the partial pressure of gases? A. The concentration of gas is inversely related to…
Published	01/14/2024	The composition of air that is expired first is A. alveolar air B. dead space air  C. atmospheric air D. alveolar and dead space a…
Published	01/14/2024	The basic rhythm of respiration is generated by the nucleus A. ambiguus B. parabrachialis C. tractus solitarius  D. retroambiguus …
Published	01/14/2024	Which of these reflexes ensures that the lung do not over distend? A. Hering-Breuer Inflation Reflex B. Hering-Breuer Deflation Reflex C. P…
Published	01/14/2024	Which of the following is true regarding diffusion of oxygen and carbon dioxide? A. CO2 diffuses exactly opposite to the diffusion of O2 …
Published	01/14/2024	The respiratory exchange ratio is equal to the rate of carbon dioxide output divided by the rate of oxygen output.TrueFalse
Published	01/14/2024	A few parasympathetic nerve fibers derived from the vagus nerves penetrates the lung parenchyma, which, when activated, cause mild to moderate dila…
Published	01/14/2024	Dead space may be measured through the nitrogen washout test.TrueFalse
Published	01/14/2024	Alveolar ventilation is equal to the respiratory rate times the amount of air that enters the alveoli and adjacent gas exchange areas with each bre…
Published	01/14/2024	The response of the Hering-Breuer deflation reflex is hyperpnea.TrueFalse
Published	01/14/2024	Carbon dioxide can pass through the blood-brain very easily. True False
Published	01/14/2024	The primary effect of the rostral respiratory center is to control the “switch-off” point of the inspiratory ramp, thus controlling the duration of…
Published	01/14/2024	The epithelium of the upper airway is supplied with sensory nerve-endings called J receptors that initiate coughing or sneezing.True False&nbs…
Published	01/14/2024	Most of the neurons of the ventral respiratory group are located within the nucleus of the tractus solitarius. True False
Published	01/14/2024	The chemosensitive area, located bilaterally on the surface of the midbrain, is highly sensitive to changes in plasma CO2 and hydrogen ion conce…
Published	01/14/2024	The pneumotaxic center mainly controls the rate and depth of breathing. True False
Published	01/14/2024	The ventral respiratory group mainly causes expiration. True False
Published	01/14/2024	In the arterial baroreceptor reflex, an increased systemic BP will lead to bronchodilation.  True False
Published	01/14/2024	In the diving reflex, immersion of the face in water results to an increase in the heart rate. True False
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