Multiple choice

Which structures are part of a neuron? (Select all that apply.)

  1. Axon

  2. Opioid

  3. Cortex

  4. Dendrite
Reveal answer Fill a bubble to check yourself
A,D Correct answer
Explanation

Neurons are the fundamental units of the nervous system, consisting of a cell body, dendrites, and an axon. Opioids are chemicals that interact with neurons, and the cortex is a structure made of many neurons, not a part of a single neuron.

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