Inferred network

R(Retina) → MPN(Medial preoptic nucleus)
MPN(Medial preoptic nucleus) → MM(Medial mammillary nucleus)
MM(Medial mammillary nucleus) → PMd(Dorsal premammillary nucleus)
PMd(Dorsal premammillary nucleus) → LHA(Lateral hypothalamic area)

Support information about direct projections from Retina to Medial preoptic nucleus:
Sending structure Receiving structureStrength of projection Type of connectionTechniqueGeneral descriptionCollatorAssociated reference
RetinaMedial preoptic nucleus light/moderatenot knownCholera toxin conjugated to HRP
Case pg348,349, fig5a-f. 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 Medial component of the RHT included labeled fibres and terminals found near the midline involved the medial half of the medial preoptic area terminals evident in the ventral part of the medial preoptic nucleus.
Levine JD, Weiss ML, Rosenwasser AM, Miselis RR., 1991

Support information about direct projections from Medial preoptic nucleus to Medial mammillary nucleus:
Sending structure Receiving structureStrength of projection Type of connectionTechniqueGeneral descriptionCollatorAssociated reference
Medial preoptic nucleusMedial mammillary nucleus existsnot knownautoradiography
none provided
Swanson L.W., 1976

Support information about direct projections from Medial mammillary nucleus to Dorsal premammillary nucleus:
Sending structure Receiving structureStrength of projection Type of connectionTechniqueGeneral descriptionCollatorAssociated reference
Medial mammillary nucleusDorsal premammillary nucleus lightnot knownHRP/WGA
Case pg283, fig10. Soma notes In addition, all injs focused on pars lateralis of MMN, such as in animal R18 (fig3), resulted in retrograde labeling of few neurons in ipsi ventral & dorsal premammiliary nuclei.. Terminal notes single iontophorectic inj of WGA-HRP ?Inj sites depicted in fig3. representative cases into different subdivisions of medial mammiliary nucleus & surrounding hypothalamic regions in 8 animals. --few representative cases are wholly in MM--.
Gonzalo-Ruiz A, Alonso A, Sanz JM, Llinas RR., 1992

Support information about direct projections from Dorsal premammillary nucleus to Lateral hypothalamic area:
Sending structure Receiving structureStrength of projection Type of connectionTechniqueGeneral descriptionCollatorAssociated reference
Dorsal premammillary nucleusLateral hypothalamic area existsnot knownPHAL
perifornical
Canteras N.S., Swanson L.W., 1992