In your Ph.D. research, you use thin slices of brain tissue to study neuronal signaling. You attach an electrode to a single neuron, but cannot detect any activity. What is the most likely explanation?
A. Neurons are not electrically active; you should be recording neuroglia instead.
B. Excessive myelination is blocking inputs to the cell.
C. When you sliced the brain, you disconnected the cell from its dendrites.
D. When you sliced the brain, you disconnected the cell from its neuroglia.
Answer: C
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