ADF is a set of two neurons that have dual ciliated endings in the
amphid sensillum. The
endings are in the amphid channel, which is open to the outside
(figure 1). Processes from
lateral cell bodies enter the ventral cord via the amphidial
commissures and turn anteriorly
to enter the nerve ring. The processes of ADF run near the outside
surface and posterior face
of the ring, in close association with those of AIZ. They meet at the
dorsal mid-line and
terminate; there is a gap junction at the point or contact (b). The
main synaptic output is to RIA and AIZ (a); there are also synapses to SMB (c), AUA and RIR,
usually in dyadic
combinations with RIA or AIZ. AWB synapses onto ADF in several places
(d, *a) and there
are gap junctions to RIH, ADA and AIA.
Magnifications: (a) x 25500, (b)-(d) x 12750.
Click pictures for higher resolution images
