Inferred network

R(Retina) → AVP(Anteroventral preoptic nucleus)
AVP(Anteroventral preoptic nucleus) → SUMl(Supramammillary nucleus lateral part)
SUMl(Supramammillary nucleus lateral part) → MPN(Medial preoptic nucleus)
MPN(Medial preoptic nucleus) → 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 Supramammillary nucleus lateral part:
Sending structure Receiving structureStrength of projection Type of connectionTechniqueGeneral descriptionCollatorAssociated reference
Anteroventral preoptic nucleusSupramammillary 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 Supramammillary nucleus lateral part to Medial preoptic nucleus:
Sending structure Receiving structureStrength of projection Type of connectionTechniqueGeneral descriptionCollatorAssociated reference
Supramammillary nucleus lateral partMedial preoptic nucleus existsnot knownTrue Blue/SITS/WGA
ipsilateral, after excluding projections described in Simerly, Swanson, & Gorski Brain Res. 324: 185-189, 1984
Simerly RB, Swanson LW., 1986

Support information about direct projections from Medial preoptic nucleus to Lateral hypothalamic area:
Sending structure Receiving structureStrength of projection Type of connectionTechniqueGeneral descriptionCollatorAssociated reference
Medial preoptic nucleusLateral hypothalamic area moderatenot knownHRP/WGA
Case table1. Soma notes WGA-HRP inj. Terminal notes lateral hypothalamic nucleus.
Chiba T, Murata Y., 1985
Medial preoptic nucleusLateral hypothalamic area existsnot knownautoradiography
none provided
Swanson L.W., 1976
Medial preoptic nucleusLateral hypothalamic area existsnot knownPHAL
earlier: Swanson JCN 167:227, 1976. Collator note: repeats not included from Swanson, Mogenson, Gerfen, & Robinson Brain Res. 295:161-178, 1984
Swanson L.W., Mogenson G.J., Simerly R.B., Wu M., 1987