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CELL TYPE LINEAGE LOCATION NEUROTRANSMITTER ASSOCIATED GLIA

AVKL
AVKR

Interneuron

AB plpapapap
AB prpapapap

Ventral
ganglion of
head

Express FMRFamide-like peptide, FLP-1 precursor (Nelson L.S. et al 1998).

None
DESCRIPTION

Mainly postsynaptic in ventral cord and presynaptic in ring. Ring and ventral cord interneuron. After making a full loop around the nerve ring, AVKR axon runs posteriorly on the left side of the ventralcord, AVKL axon, on the other hand, runs on the right side of the ventral cord.


Functions: Not known


Receptor expression: Express glutamate receptor subunit GLR-5 (Brockie P.J. et al 2001).











IDENTIFICATION:

The three neurons, AIM, AIY and AVK resemble pearls-on-a-string, located posterior and slightly more superficial to the excretory cell nucleus on the right and left sides of the head.
The nucleus of the excretory cell is the biggest one on the ventral side, below the terminal bulb of the pharynx and looks like an egg with a sunny-side-up appearance. The three neuronal nuclei can easily be located immediately posterior to the excretory cell nucleus, the most anterior one being AIM, the middle, AIY, and the most posterior one, AVK. On the right side, sometimes RIS nucleus accompanies these three nuclei.
Cell and axon structures of AIY and AIM are very similar; care must be taken to differentiate between the two when identifying these two cells with fluorescent markers.