ArticleChild's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery2014
The habenulo-interpeduncular and mammillothalamic tracts: early developed fiber tracts in the human fetal diencephalon.
Article in Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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2 citing papers in PubMed, 11 citations in OpenAlex.
- DHARANI: A 3D Developing Human-Brain Atlas Resource to Advance Neuroscience Internationally Integrated Multimodal Imaging and High-Resolution Histology of the Second Trimester.The Journal of comparative neurology · 2025Article
- The habenulo-interpeduncular pathway in nicotine aversion and withdrawal.Neuropharmacology · 2015Review
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7 authors at 6 institutions in 3 countries.
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Abstract
purposeThe habenulo-interpeduncular (HI) and mammillothalamic (MT) tracts are phylogenetically ancient. The clinical relevance of these tracts has recently received attention. In this work, we map the anatomy the developing HI and MT.
methodsTo investigate the topographical anatomy of developing fiber tracts in and around the diencephalon, we examined the horizontal, frontal, and sagittal serial paraffin sections of 28 human fetuses at 8-12 weeks of gestation.
resultsIn all specimens, eosinophilic early fiber bundles were limited to the bilateral HI and MT tracts in contrast to pale-colored later developing fibers such as the thalamocortical projections and optic tract. The HI and MT tracts ran nearly parallel and sandwiched the thalamus from the dorsal and ventral sides, respectively. The nerve tract course appeared to range from 5-7 mm for the HI tract and 3-5 mm for the MT tract in 15 specimens at 11-12 weeks. The HI tract was embedded in, adjacent to, or distant from the developing parvocellular red nucleus.
conclusionsIn early human fetuses, HI and MT tracts might be limited pathways for primitive cholinergic fiber connections between the ventral midbrain and epithalamic limbic system.
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