The disks of the rod outer segment are free floating ones, but those of cone outer segment connect each other. Bothe rods and cones have connecting cilium and accessory outer segment (AOS)to connect inner and outer segment.
英
美
- 視桿外段膜盤(pán)為游離膜盤(pán)；而視錐外段膜盤(pán)相互連接；為連續的膜結構；視桿和視錐均有連接纖毛和輔助外段連接內外段；視錐的輔助外段特別明顯.
