Compensatory mechanisms in shock

Compensatory mechanisms that 'save' or preserve blood flow to vital organs such as brain and 'heart' during shock,
"Heart SAVER"

•  Sympathoadrenal system
•  Atrial natriuretic factor (ANF)
•  Vasopressin
•  Endogenous digitalis like factor
•  Renin-angiotensin-aldosterone system (RAAS)