Question

Identify the parts labelled as P, Q, R and S in the figure and select the correct option.

• A. (P)-Cerebrum; (Q)-Medulla; (R)-Skull; (S)-Cerebellum
• B. (P)-Skull; (Q)-Cerebrum; (R)-Cerebellum; (S)-Medulla
• C. (P)-Medulla; (Q)-Cerebellum; (R)-Cerebrum; (S)-Skull
• D. (P)-Cerebellum; (Q)-Skull; (R)-Medulla; (S)-Cerebrum

Answer 1

The correct option is B (P)-Skull; (Q)-Cerebrum; (R)-Cerebellum; (S)-Medulla

In the vertebrates, the brain is lodged inside a hard bony protective covering called the skull. The brain is differentiated into 3 regions viz., forebrain, midbrain, and hindbrain.

Label P - Skull

Label Q - Cerebrum is a part of the forebrain.

Label R - Cerebellum is a part of the hindbrain.

Label S - Medulla is a part of the hindbrain.

So, the correct option is option B.