Answer: Cortex.
- A Medulla
- B Ganglion
- C Meninges
- D Cortex
Correct answer: D. Cortex
Explanation: The cerebral cortex is the folded outer layer of grey matter over the cerebrum.
Structure of a neuron. Image: LadyofHats (Mariana Ruiz), Public Domain, via Wikimedia Commons.
Concept context
Brain, spinal cord, neurons, reflex arcs, and sense organs.