The tissue described as gray matter of the cerebrum is associated with which named neuron type?

The tissue described as gray matter of the cerebrum is associated with which named neuron type?

• A. Pyramidal cells
• B. Purkinje cells
• C. Granule cells
• D. Astrocytes

Answer: (A)

Gray matter in the cerebrum is where neuronal cell bodies reside, and the predominant neuron type in the cerebral cortex is the pyramidal cell. These cells are large, pyramid-shaped neurons with their soma in the gray matter and a prominent apical dendrite that reaches toward the brain’s surface, plus basal dendrites spreading laterally. They are the main excitatory projection neurons, sending signals to many distant brain areas and forming the core circuits of cortical processing. Purkinje cells, on the other hand, are in the cerebellum’s cortex, not the cerebrum; granule cells are small neurons found in the cerebellum and hippocampus; astrocytes are glial cells, not neurons. So the gray matter of the cerebrum is associated with pyramidal cells.

Gray matter in the cerebrum is where neuronal cell bodies reside, and the predominant neuron type in the cerebral cortex is the pyramidal cell. These cells are large, pyramid-shaped neurons with their soma in the gray matter and a prominent apical dendrite that reaches toward the brain’s surface, plus basal dendrites spreading laterally. They are the main excitatory projection neurons, sending signals to many distant brain areas and forming the core circuits of cortical processing. Purkinje cells, on the other hand, are in the cerebellum’s cortex, not the cerebrum; granule cells are small neurons found in the cerebellum and hippocampus; astrocytes are glial cells, not neurons. So the gray matter of the cerebrum is associated with pyramidal cells.