State any one function of the part numbered 1.

Part 1 is the CEREBRUM. It is the seat of INTELLIGENCE, MEMORY, REASONING AND WILL, and it initiates and controls all VOLUNTARY actions. (Also acceptable: it receives and interprets sensations from the sense organs; it regulates body temperature.)

Only ONE function is asked for, so give one and give it fully.

The cerebrum is the thinking part of the brain — everything conscious happens here. Its deep folding exists precisely to increase the surface area available for the cytons of the grey matter, and more cell bodies means greater capacity for thought and memory.

Match the function to the part, which answers every brain question: CEREBRUM — thinking, memory, voluntary action CEREBELLUM — balance and coordination of movement MEDULLA OBLONGATA — involuntary activity such as heartbeat, breathing and peristalsis