||Caption: Light micrograph of a stellate neuron (stellate cell; stellate nerve cell) in the human cortex. This stellate neuron has been stained with the fluorescent dye Lucifer Yellow. The cerebral cortex is a layer of nervous tissue that is outermost to the cerebrum of the mammalian brain. It is called the gray area (gray matter) of the brain due to nerve fibers that lack insulation (myelin sheath). The cerebral cortex covers the cerebrum and cerebellum. It consists of up to six horizontal layers. The Cortex Layer 4, the Internal Granular Layer, contains different types of stellate cells. This stellate neuron is this micrograph is from the V1 region in the visual cortex. These stellate neurons (often called cortical spiny stellate cells) receive excitatory synaptic fibers from the thalamus and process feed forward excitation to the visual cortex pyramidal cells. The cerebral cortex plays a key role in memory, attention, perceptual awareness, thought, language, vision and consciousness.
Type: LM Fluorescense