True or false: Hypoxia (measured in the Carotid artery) triggers an increase in respiratory activity, which in turn increases ventilation. In response to the nasopharyngeal (diving) reflex (yeah, wrong lecture. whatevs), this is absent.
Answer
True
False
Question 3
Question
True or false: Pulmonary stretch receptors influence the cardiovascular system as part of the Hering-Breuer reflex.
Answer
True
False
Question 4
Question
Hypoxia causes both EXCITATION (secondarily, from pulmonary stretch receptor activity) and INHIBITION (primarily, from chemoreceptor activity) of HR.
At high altitude altitude, what is the NET effect?
Answer
Excitation
Inhibition
Question 5
Question
Hypoxia causes both EXCITATION (secondarily, from pulmonary stretch receptor activity) and INHIBITION (primarily, from chemoreceptor activity) of Vascular Resistance.
At high altitude altitude, what is the NET effect?
Answer
Excitation (so secondary vasoconstriction)
Inhibition (so primary vasodilation)
Excitation (so primary vasoconstriction)
Inhibition (so secondary vasodilation)
Excitation (so primary vasodilation)
Inhibition (so primary vasoconstriction)
Excitation (so secondary vasodilation)
Inhibition (so secondary vasoconstriction)
Question 6
Question
The NTS is where the quite a few of the baroreceptors and chemoreceptors lead to. What is it, though?
NTS = ??
Over prolonged exposure to high altitude (a few days or more), production of __________ increases. The effect of this is to maintain O2 unloading in capillaries, despite reduction in inspired PO2.
Answer
2-DPG
2-BPG
2,3-DPG
2,3-BPG
RBC production
Question 10
Question
Hypoxia at high altitude results in [blank_start]__________[blank_end] Blood-brain barrier permeability and Cerebral [blank_start]__________[blank_end].