Figure 4:
(A) Cross-section photo of one side of the rostrum, showing the pores (p) and canals of eight ampullary electroreceptors.
(B) Enlarged photo of two electroreceptors. a: ampulla. c: canal. e: sensory epithelium. n: nerve fibers.
(C) Further enlarged photo of the sensory epithelium. a: ampulla. h: hair cells. s: support cell. A 0.75 N.A. water-immersion objective lens and Hoffman modulation contrast optics were used. The 50
tissue section of the rostrum was cut on a
vibratome. The tissue was embedded in gelatin and not dehydrated, to
minimize any distortion or shrinkage.
(D) Schematic of the different components of an ampullary electroreceptor. See the previous abbreviations. cb: cell body of the primary afferent, where spikes can be recorded using a microelectrode. sy: excitatory synapse from hair cells to primary afferent (pa) axons in the anterior lateral line nerve (ALLn).
(A) Cross-section photo of one side of the rostrum, showing the pores (p) and canals of eight ampullary electroreceptors.
(B) Enlarged photo of two electroreceptors. a: ampulla. c: canal. e: sensory epithelium. n: nerve fibers.
(C) Further enlarged photo of the sensory epithelium. a: ampulla. h: hair cells. s: support cell. A 0.75 N.A. water-immersion objective lens and Hoffman modulation contrast optics were used. The 50
tissue section of the rostrum was cut on a
vibratome. The tissue was embedded in gelatin and not dehydrated, to
minimize any distortion or shrinkage. (D) Schematic of the different components of an ampullary electroreceptor. See the previous abbreviations. cb: cell body of the primary afferent, where spikes can be recorded using a microelectrode. sy: excitatory synapse from hair cells to primary afferent (pa) axons in the anterior lateral line nerve (ALLn).