ADRENAL INSUFFICIENCY ADRENAL CRISIS
Introduction. Medulla secretes epinephrine and norepinephrine into adrenal veins when stimulatedCortex secretes steroids regulating metabolism, vascular tone, cardiac contractility, TBW/Na/K balance, androgenic function. Adrenal Physiology. Cyclic secretion controlled by time of day, HPA axis, renin-angiotensin system, serum potassium levelsStress increases basal glucocorticoid and mineralcorticoid levels 5-10 foldOccurs within minutes.
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