Label the following:
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.
True or false: Pulmonary stretch receptors influence the cardiovascular system as part of the Hering-Breuer reflex.
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?
Excitation
Inhibition
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?
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)
The NTS is where the quite a few of the baroreceptors and chemoreceptors lead to. What is it, though? NTS = ??
Nucleus of Solitary Tract (NTS)
Nucleus Tractus Solitarii (NTS)
Fill in the two arrows.
What is it that moves the curve to the blue one?
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.
2-DPG
2-BPG
2,3-DPG
2,3-BPG
RBC production
Hypoxia at high altitude results in Increased Decreased( Increased, Decreased ) Blood-brain barrier permeability and Cerebral Vasodilation Vasoconstriction( Vasodilation, Vasoconstriction ).
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