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BIO 669 Exam Questions And Answers
(Guaranteed A+)
The vital capacity is comprised of all of the following volumes except: - answer✔Residual
volume
Along with the respiratory bronchioles, the (blank) is a thin walled balloon-like structure that
act as the primary unit of gas exchange: - answer✔Alveolus
While most alveolar perfusion is under control of local humoral conditions, widespread
decrease in PaO2 (alveolar O2) is likely to result in: - answer✔Pulmonary artery constriction
(pulmonary hypertension)
Acidosis will (blank) the affinity of oxygen to hemoglobin and thus would be considered a
(blank) shift in the oxyhemoglobin dissociation curve: - answer✔Decrease, right
Vasoconstriction of a pulmonary artery serving an area of lung will have what effect? -
answer✔Decreased blood flow to that area
The effect of oxygen saturation on carbon dioxide to hemoglobin is termed the: -
answer✔Haldane effect
The pulmonary disease most associated with permanent enlargement of acini due to a loss of
elastic tissue is most likely: - answer✔Emphysema
Which of the following is NOT associated with pulmonary edema: - answer✔Right sided HF
Which of the following is NOT part of Virchows triad in the development of thrombi and
embolus? - answer✔Immune system activation
The principle cells function to: - answer✔Reabsorb Na+ and secrete K+
Urine does not reflux back into the ureter because: - answer✔The lower end of the ureter is
compressed by the detrusor muscle during micturition
The Na+ sensing cells in the distal tubules are the: - answer✔Macula Densa cells
Both a decrease in plasma volume and increase in plasma osmolarity stimulate: - answer✔ADH
secretion
Urodilatin - answer✔Is a natriuretic peptide that enhances Na+ secretion and K+ retention
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