Classify the cortical pyramidal cell based on (1) the number of neurites, (2) the presence or ab- sence of dendritic spines, (3) connections, and (4) axon length.

Sourav PanSeptember 23, 2024

Answered

Cortical pyramidal cells can be classified based on the following criteria:

1. Number of Neurites: Pyramidal cells are classified as multipolar neurons because they have multiple neurites (typically one axon and several dendrites) extending from the cell body.
2. Presence or Absence of Dendritic Spines: Pyramidal cells are characterized by the presence of dendritic spines. These spines are small protrusions on the dendrites that serve as sites for synaptic connections.
3. Connections: Pyramidal cells are primarily projection neurons (Golgi type I neurons) because they typically send long axons to other areas of the brain, making them important for inter-regional communication.
4. Axon Length: Pyramidal cells usually have long axons that can extend from the cerebral cortex to other parts of the brain, allowing them to connect with distant targets