Which of the following is not a part of midbrain?A Pons B Cerebellum C Cerebrum D All of the above

The midbrain, also known as the mesencephalon, is a part of the brainstem. It does not include the Pons, Cerebellum, or Cerebrum. Therefore, the answer is D, all of the above. Here's a step-by-step explanation:

1. The midbrain is a small central part of the brainstem. It is associated with vision, hearing, motor control, sleep and wake cycles, alertness, and temperature regulation.

2. The Pons is a part of the brainstem that links the medulla oblongata and the thalamus. It's not a part of the midbrain.

3. The Cerebellum is a part of the brain at the back of the skull. It regulates muscular activity. It's not a part of the midbrain.

4. The Cerebrum is the largest part of the brain and is divided into two hemispheres. It is responsible for several higher functions, including learning, perception, and emotion. It's not a part of the midbrain.

So, none of the options (Pons, Cerebellum, Cerebrum) are part of the midbrain.