pituitary stalk

The apical portion of the tubular structure extending from the hypothalamus to the posterior lobe of the pituitary gland. Every claim on this page comes from the Leumas anatomy graph and carries its source.

What the pituitary stalk is

The apical portion of the tubular structure extending from the hypothalamus to the posterior lobe of the pituitary gland. The atlas records it as a nerve at the organ scale in the human body.

Where the pituitary stalk is

It sits within the nervous, endocrine and reproductive systems. Not positioned individually. Drawn inside the structure this dataset says contains it — the containment is asserted, the exact spot within it is not.

What the pituitary stalk connects to

The atlas records 7 typed relationships for it, across 4 kinds of connection. part of neurohypophysis and reproductive system.

Supply and innervation

This dataset asserts no arterial supply, venous drainage or innervation for the pituitary stalk. 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 InfS, THP, infundibular stem, hypophyseal stalk, infundibular stalk and infundibular stem of neurohypophysis, and 15 more. Searching any of those names reaches this page.

Source

Uberon multi-species anatomy ontology (Mungall et al.), CC BY 4.0. Term UBERON:0002434, version 2026-06-19, retrieved 2026-08-24. Licence: CC-BY-4.0.

Part of: neurohypophysis and reproductive system.
A kind of: anatomical structure and regional part of brain.
connects: hypothalamus and neurohypophysis.
contributes to morphology of: neurohypophysis.

Questions

Where is the pituitary stalk?

What does the pituitary stalk connect to?

Part of: neurohypophysis and reproductive system.

Is the pituitary stalk 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.