Mammal Cerebellum – cerebellum coordinates muscular activity, maintains posture and equilibrium. The cerebellar cortex forms a series of deeply convoluted folds or folia supported by branching central medulla of white matter. Molecular layer – contains two main types of neurons: stellate cells and basket cells, w/c are scattered among dendritic ramification and numerous thin axons that run parallel to the long axis of folia. Granular cell – the layer is densely populated by small granule cells with dark staining nuclei and scanty cytoplasm Purkinje cell layer – layer is formed of a single row of large Purkinje cells White matter – parts of the brain and spinal cord that are responsible for communication between the various gray matter regions and between the gray matter and the rest of the body Pia matter – thin layer of connective tissue that entirely covers the surface of the brain and spinal cord