19.光反射於第四級傳導從睫狀神經節(ciliary ganglion)到虹彩，主要是經由那條神經？
(A)短睫狀神經(short ciliary nerve)
(B)長睫狀神經(long ciliary nerve)
(C)內側睫神經(medial ciliary nerve)
(D)外側睫神經(lateral ciliary nerve)

考題在測什麼本題測驗的是瞳孔對光反射...