Grey matter contains which of the following?

• A. Synapses, the working area of the brain, and dendrites
• B. Myelinated axons
• C. Blood vessels only
• D. Cranial nerves

Answer: (A)

Gray matter is the region where brain processing happens and is rich in neuronal cell bodies, dendrites, and the synapses where neurons communicate. Dendrites receive signals and synapses are the contact points that enable neural processing, so describing gray matter as containing synapses, the working area of the brain, and dendrites captures its essential makeup. In contrast, white matter is dominated by myelinated axons, which is why that feature belongs to white matter rather than gray. Blood vessels are present in both regions but aren’t defining features, and cranial nerves are part of the peripheral nervous system rather than brain tissue. So, the option listing synapses, the working area, and dendrites best describes gray matter.