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BIO 669 EXAM QUESTIONS AND ANSWERS
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BIO 669 EXAM QUESTIONS AND ANSWERS
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BIO 669 EXAM QUESTIONS ANDANSWERS
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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