Final answer:
Pyramidal cells are a type of multipolar neuron found in the cerebral cortex. They have multiple dendrites, dendritic spines, extensive connections, and long axons.
Step-by-step explanation:
Pyramidal cells are a type of multipolar neuron found in the cerebral cortex. They are characterized by their pyramid-shaped cell bodies, multiple dendrites, and a single prominent axon.
(a) Number of neurites: Pyramidal cells have multiple dendrites, which are the neurites that receive incoming signals from other neurons.
(b) Presence or absence of dendritic spines: Pyramidal cells have dendritic spines, which are small protrusions on the dendrites that form synapses with incoming axons.
(c) Connections: Pyramidal cells have extensive connections within the cerebral cortex and also form connections with other brain regions.
(d) Axon length: The length of the axon can vary, but pyramidal cells typically have long axons that can span long distances within the brain.