The data mention gray matter in the cerebrum. Which cell type is associated with this region?

The data mention gray matter in the cerebrum. Which cell type is associated with this region?

• A. Pyramidal cells
• B. Purkinje cells
• C. Microglia
• D. Oligodendrocytes

Answer: (A)

Gray matter in the cerebrum contains neuronal cell bodies, and the defining cell type there is the pyramidal neuron. These excitatory neurons are the principal workhorses of the cerebral cortex, with triangular-shaped cell bodies and long apical dendrites that reach toward the outer cortex, forming many corticocortical connections and sending information to other brain regions. Purkinje cells, while large neurons, belong to the cerebellar cortex and are not part of the cerebrum. Microglia are immune-like glial cells distributed throughout the CNS and don’t define a region, and oligodendrocytes mainly relate to myelination in white matter rather than the cortical gray matter. So, the cell type most closely associated with gray matter of the cerebrum is the pyramidal neuron.

Gray matter in the cerebrum contains neuronal cell bodies, and the defining cell type there is the pyramidal neuron. These excitatory neurons are the principal workhorses of the cerebral cortex, with triangular-shaped cell bodies and long apical dendrites that reach toward the outer cortex, forming many corticocortical connections and sending information to other brain regions. Purkinje cells, while large neurons, belong to the cerebellar cortex and are not part of the cerebrum. Microglia are immune-like glial cells distributed throughout the CNS and don’t define a region, and oligodendrocytes mainly relate to myelination in white matter rather than the cortical gray matter. So, the cell type most closely associated with gray matter of the cerebrum is the pyramidal neuron.