PGY 206 EXAM 4 QUESTIONS WITH CORRECT DETAILED ANSWERS VERIFIED A+ LATEST VERSION

PGY 206 EXAM 4 QUESTIONS WITH CORRECT DETAILED ANSWERS VERIFIED A+ LATEST VERSION The oxygen-hemoglobin dissociation curve: - correct answers-Has a horizontal (X axis) that depicts the concentration of oxygen. The oxygen-hemogobin dissociation curve is shifted rightward by decreasing which property in the blood? - correct answers-pH. The majority (70%) of CO2 in blood is transported in what form? - correct answers-HCO3. When a patient secretes large amounts of mucus into the airways, you would expect the mucus to ___ the lumen of the conducting zone, ___ the resistance to airflow, and ___ the volume of the dead space. - correct answers-Narrow: increase: decrease. Which aspect of blood chemistry is sensed by the central chemoreceptors? - correct answers-Systemic arterial PCO2. When one visits a region at high altitudes (the Peruvian Andes), what is the primary sensed variable that leads to an increase in one's minute ventilation? - correct answers-Systemic arterial PO2. What causes the partial lung collapse in a person that has pneumonia? - correct answers-Transpulmonary pressure decreases. Which cell type is most likely to be abnormal in a prematurely born infant? - correct answers-Alveolar Type II cells. Which brain region is most important in enabling you to breathe while sleeping peacefully through the night? - correct answers-Medulla oblongata.