Needling starts party that grows in the area
C3 makes it bigger, he’s the party promoter
vasodilation makes the party area bigger
sympathetic neurons define the other side (boundary upstream) of the party
heparin helps it flow, he’s the DJ
histamine is the reason “it’s gettin hot in here”
neutrophils and eosinophils are the busboys/cleanup crew
later on, cortisol shuts the party down- the police or Dad coming home!