From the given pressure-volume curve, identify the end-diastolic volume (EDV) and end-systolic volume (ESV), then calculate the ejection fraction using the formula EF = (EDV - ESV)/EDV × 100%.
A40%
B50%
C55%
D60%
Which hormone, together with the catecholamines, enhances the tone of vascular smooth muscle and assists in elevating blood pressure?
AParathyroid hormone (PTH)
BGlucagon (GCG)
CThyroxine (T4)
DCortisol
What is the physiological response of the kidney during shock?
AGFR decreases
BPerfusion of kidney decreases
CAfferent arteriole resistance increases
DRenal blood flow decreases
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