analysis of serial semi-thin sections of golgi-impregnated cells demonstrates that each subtype of bipolar contacts rods and a characteristic set of chromatic subtypes of cones : types a1 and b1 cells contact rods and red-sensitive cones , while types a2 , b2 and b3 contact rods and red- and green-sensitive cones .
C0018042
golgi
C0007634
cells