This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Physiology
UMN includes 
Select and explain. 
A. Pyramidal cells, B. Peripheral nerves, C. Anterior horn cells, D. Glial cells
A: Pyramidal cells
Answer: A: Pyramidal cells 
Explanation: Upper motor neuron- Pyramidal cells, corticospinal tract, corticobulbar tract, extrapyramidal tracts.