medulla

The parietal cortex — along with the hypothalamus and medulla — contains GLP-1 receptors.

The innermost, or core layer, is the medulla.

Each hair can have three layers – the medulla, the cortex and the cuticle.

This layer is also very fragile, but only thick or coarse hairs contain this part – so those with thin or blond hair typically don’t have the medulla layer in their hairs.

The library nearly resembles the shape of a brain, with the entrance being the medulla oblongata and the robust flooring as the cerebellum.