I will give you the area of the injection arm costs, measured from the shoulder buttons (Acromion process) into 3 fingers. On the medial muscular arms, above the trees, the Middle arm (Deltoid muscle) template.
I will give you an injection in the arm, as measured by the shoulder (Acromion process) down the middle three fingers on the arm just above the mid-upper arm muscle (Deltoid muscle).
I'll give you an injection vasoconstriction measured by the shoulder buttons (Acromion process) down 3 fingers. On the medial arm above the middle arm muscles (Deltoid muscle).