hypothalamus

A specialized brain region of the ventral diencephalon arising near the end of the segmentation period; the embryonic hypothalamic region will give rise to the posterior pituitary gland as well as a number of brain nuclei. [ZFA]. One of the most important functions of the hypothalamus is to link the nervous system to the endocrine system via the pituitary gland (hypophysis).[Wikipedia]. Every claim on this page comes from the Leumas anatomy graph and carries its source.

What the hypothalamus is

A specialized brain region of the ventral diencephalon arising near the end of the segmentation period; the embryonic hypothalamic region will give rise to the posterior pituitary gland as well as a number of brain nuclei. [ZFA]. One of the most important functions of the hypothalamus is to link the nervous system to the endocrine system via the pituitary gland (hypophysis).[Wikipedia]. The atlas records it as a nerve at the organ scale in the human body.

Where the hypothalamus is

It sits within the nervous system. Positioned deliberately as part of this species body plan.

What the hypothalamus connects to

The atlas records 19 typed relationships for it, across 6 kinds of connection. part of limbic system and thalamic complex.

Supply and innervation

This dataset asserts no arterial supply, venous drainage or innervation for the hypothalamus. Only a minority of structures carry those edges here, so an empty answer means nothing has been recorded — not that there is nothing to record.

Also called

Also recorded as Hy, preoptico-hypothalamic area, preoptico-hypothalamic region and hypothalamus. Searching any of those names reaches this page.

Source

Uberon multi-species anatomy ontology (Mungall et al.), CC BY 4.0. Term UBERON:0001898, version 2026-06-19, retrieved 2026-08-24. Licence: CC-BY-4.0.

• Part of: limbic system and thalamic complex.
• A kind of: regional part of brain.
• contains: anterior hypothalamic region, dorsal hypothalamic area, hypothalamic nucleus, intermediate hypothalamic region, lateral zone of hypothalamus and medial forebrain bundle, and 3 more.
• contributes to morphology of: diencephalon, paraventricular nucleus of hypothalamus, suprachiasmatic nucleus and supraoptic nucleus.
• connects: hypothalamo-hypophyseal system and pituitary stalk.
• Continuous with: mammillothalamic axonal tract.

Questions

Where is the hypothalamus?

It sits within the nervous system. Positioned deliberately as part of this species body plan.

What does the hypothalamus connect to?

Part of: limbic system and thalamic complex.

Is the hypothalamus the same in other species?

Leumas holds the same relationship vocabulary for every species it carries, so where another dataset records this structure you can put the two side by side on /compare.