Inferred network

R(Retina) → AVP(Anteroventral preoptic nucleus)
AVP(Anteroventral preoptic nucleus) → MPNl(Medial preoptic nucleus lateral part)
MPNl(Medial preoptic nucleus lateral part) → MPO(Medial preoptic area)
MPO(Medial preoptic area) → LHA(Lateral hypothalamic area)

Support information about direct projections from Retina to Anteroventral preoptic nucleus:
Sending structure Receiving structureStrength of projection Type of connectionTechniqueGeneral descriptionCollatorAssociated reference
RetinaAnteroventral preoptic nucleus existsnot knownCholera toxin conjugated to HRP
Case pg351, fig5a-e. Soma notes 36 female Sprague-Dawley rats weighing 200-350g. 10 microliters of CT-HRP(.20%-.40%) were injected into one eye ?behind the lens into the vitreous chamber of the eye. pressure injection over 1 min. Terminal notes Terminal label evident throughout the anteroventral preoptic nucleus..
Levine JD, Weiss ML, Rosenwasser AM, Miselis RR., 1991

Support information about direct projections from Anteroventral preoptic nucleus to Medial preoptic nucleus lateral part:
Sending structure Receiving structureStrength of projection Type of connectionTechniqueGeneral descriptionCollatorAssociated reference
Anteroventral preoptic nucleusMedial preoptic nucleus lateral part lightnot knownPHAL
Case pg233. Soma notes PHA-L inj. Terminal notes not specified..
Simerly RB, Swanson LW., 1988
Anteroventral preoptic nucleusMedial preoptic nucleus lateral part existsnot knownPHAL
none provided
Simerly RB, Swanson LW., 1988
Anteroventral preoptic nucleusMedial preoptic nucleus lateral part lightnot knownPHAL
earlier: Simerly & Swanson JCN 270:209 1988 rat PHAL same material only examined and described more accurately here
Thompson R.H., Swanson L.W., 2003

Support information about direct projections from Medial preoptic nucleus lateral part to Medial preoptic area:
Sending structure Receiving structureStrength of projection Type of connectionTechniqueGeneral descriptionCollatorAssociated reference
Medial preoptic nucleus lateral partMedial preoptic area existsnot knownPHAL
Collator note: the MPN projection has a light contralateral representation, which was not described in detail.
Simerly RB, Swanson LW., 1988

Support information about direct projections from Medial preoptic area to Lateral hypothalamic area:
Sending structure Receiving structureStrength of projection Type of connectionTechniqueGeneral descriptionCollatorAssociated reference
Medial preoptic areaLateral hypothalamic area lightnot knownHRP/WGA
Case table1. Soma notes WGA-HRP inj. Terminal notes lateral hypothalamic nucleus.
Chiba T, Murata Y., 1985