Talk:Thalamus

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Three meanings of "stratum zonale".

Can anyone confirm that there are three definitions (at least) of "stratum zonale"? I've found these.

Stratum zonale of the thalamus. This "covers the dorsal surface and the external and internal medullary laminae".
Stratum zonale of the superior colliculus. This is the topmost of 7 layers, "a thin layer consisting of small myelinated axons together with marginal and horizontal cells".
Stratum zonale of the cerebral cortex. This is described in a 1911 encyclopedia: https://en.wikisource.org/wiki/1911_Encyclop%C3%A6dia_Britannica/Brain. See the section on "Histology of Cerebral Cortex". It is a synonym for Layer 1, the Molecular Layer.

The third case is not such a big problem, although this synonym probably should be mentioned in the article on the cerebral cortex. But there's just a chance that the first and second "stratum zonale" definitions could be the same or closely related. My reference books don't cover this. Maybe someone else could look this up. Alan U. Kennington (talk) 09:11, 11 September 2024 (UTC)[reply]