i think it's pretty much an arch like structure.
cerebellum
pergolas are large structures for sitting that have slats to block sun light and they are attached to another yet larger structure as where an arbor is a smaller wooden structure that is for sitting or either an entry way like a threshold.
arbor
It's in the cerebellum. When cut in half it looks like an upside down tree, hence arbor vitae.
A web-like structure is called a "network". In a biological context, it could also be referred to as a "web" or "mesh".
The name literally means "Tree of Life" in Latin. It is an evergreen bush related to the Cypress.
The root like structure of a moss are called "Rhizoids" and the root-like structures on a fern are called "Rhizomes", fungi roots are called mycorrhiza.
A waxy coat called ( cuticle)
It's called a Litter
its kinda like herpes but it burns worse.
The white matter in the cerebellum is called 'arbor vitae,' meaning 'Tree of Life.' The name refers to the appearance of this part of the brain as branches on trees extending out. Within the arbor vitae are cerebellar nuclei, which receive excitatory inputs from nerve fibers.
the skull