Cytoplasm
In cell biology, the cytoplasm is all of the material within a cell, enclosed by the cell membrane, except for the cell nucleus. The material inside the nucleus and contained within the nuclear membrane is termed the nucleoplasm. The main components of the cytoplasm are cytosol – a gel-like substance, the organelles – the cell's internal sub-structures, and various cytoplasmic inclusions. The cytoplasm is about 80% water and usually colorless.
Claustrum
The claustrum is made up of various cell types differing in size, shape and neurochemical composition. Five cell types exist and a majority of these cells resemble pyramidal neurons found in the cortex Within the claustrum, there is no organization of cell types compared to the cortex and the somas of the cells can be a pyramidal, fusiform or circular shape. The principal cell type found in the claustrum is Type 1 cells, which are large cells covered in spiny dendrites.