Draw a labelled diagram of the human brain. Describe the jobs of the cerebrum, cerebellum and medulla oblongata, and explain how the brain is protected.

1. 1 · Define in one line. The brain is the main control centre of the body; with the spinal cord it forms the central nervous system.
2. 2 · Cerebrum. The largest part, in two hemispheres, with gray matter outside; intelligence, memory, reasoning and voluntary actions.
3. 3 · Cerebellum. Below the cerebrum at the back; keeps balance and coordinates muscles.
4. 4 · Medulla oblongata. The lowest part, continuing as the spinal cord; controls heartbeat, breathing and peristalsis.
5. 5 · Protection. The skull (cranium), three meninges (dura mater, arachnoid, pia mater) and cerebrospinal fluid as a cushion.
6. 6 · Draw the brain. [Diagram: cerebrum, cerebellum, medulla oblongata, spinal cord, hypothalamus, pituitary gland, skull, meninges]
7. 7 · Link to daily life. A helmet on a two-wheeler adds one more layer of protection to the skull.
8. 8 · Close in one line. So each part of the brain has its own job, and together they control the whole body.

Scoring tip: Keep the cerebrum and the cerebellum clearly apart in your diagram and your answer; mixing them up is the commonest slip.