in foldings on the surface of the brain
The infoldings of the brain are the sulci, and the outward foldings are the gyri.
They are called cristae. They increase surface area
In JRA, the synovial membrane becomes intensely inflamed. Usually thin and delicate, the synovium becomes thick and stiff, with numerous infoldings on its surface.
touch the surface of the brain how does it feel
The convolutions in the brain increase surface area. In simpler words, those lines and ridges in the brain are what increases the surface area.
The folds in the brain increase the surface area. It nearly triples the surface area. As we grow, more of these bends form.
You have sulci ( singular is sulcus) and gyri ( singular is gyrus) in the surface of the brain. By this mechanism you have the surface area of the brain, vastly increased.
A sulcus is a depression or fissure in the surface of the brain.
The cortex is the surface of the brain. The 'wrinkly stuff'.
endocytosis
It is Endocytosis.
It is Endocytosis.