Can someone post a picture of all the nerves in the quad area so i know how to avoid them ?

Also the pics in spot injections dot com arent clear to me. i understand i should inject the outer, upper quad and the outer lower quad because both of them are juicy.

For delt i always flex to see where theres lots of fiber then look for a juicy part for the needle near the fiber bundle.
same for quads ? flex to spot the outer quad head and then loose it up and look for a juicy part ? where are the nerves tho ?
if anyone could film his own leg and mark the injection sites that would be great.
so far i only did glutes and delts, i like delts the most, cant feel the stab at all for some reason. same for quads ?

thanks.