Type: Pharyngeal interneuron (also anterior sensory?)
In MoW:
Male Wiring Project: I3
In Wormbase: I3
Lineage: MS aaaaapaa
Location: Pharynx anterior bulb
Description: Anteriorly, I3 is inserted onto muscles pm1 and pm2 and terminates

anterior to the dorsal gland cell duct with a proprioceptive-like ending. Posterior process terminates on the dorsal side of the nerve ring (Albertson and Thomson, 1976)
Neurotransmitter/ Neuropeptide:
- Acetylcholine
- NLP-3; neuropeptide-like protein
(Pereira et al., 2015; Nathoo et al., 2001)
Innexin expression:
- INX-9
(Altun et al., 2009)
Receptor expression:
- GLR-7; glutamate receptor subunit
- GLR-8; glutamate receptor subunit
(Brockie et al., 2001)
Function:
- Unknown or redundant (Avery and Thomas, 1997)