Question

Match the LIST-I with LIST-II.

Choose the correct answer from the options given below:

• A. A-II, B-I, C-IV, D-III
• B. A-I, B-II, C-III, D-IV
• C. A-IV, B-III, C-II, D-I
• D. A-II, B-IV, C-III, D-I

Hint:

Remember that Diencephalon always contains structures ending with "thalamus" (like the Hypothalamus).
Additionally, the Myelencephalon develops into the Medulla oblongata.
Using these associations helps you solve embryonic brain matching questions quickly.

Answer 1

The Correct Option is C

Step 1: Understanding the Question:
This question requires us to map the embryonic neurological subdivisions of the vertebrate brain (List I) to their respective adult neuroanatomical structures (List II).

Step 2: Key Formula or Approach:
Recall the developmental path of the central nervous system, where the neural tube differentiates into primary brain vesicles and then into secondary brain vesicles.

Step 3: Detailed Explanation:

• Let us match each embryonic brain division:

• A. Telencephalon: Becomes the cerebrum, which includes the cerebral cortex and subcortical structures like the basal ganglia. Thus, A matches IV.

• B. Diencephalon: Becomes the core of the forebrain, consisting of the thalamus, epithalamus, and hypothalamus. Thus, B matches III.

• C. Mesencephalon: Develops into the midbrain, which contains structural subdivisions such as the tectum and tegmentum. Thus, C matches II.

• D. Myelencephalon: Develops into the most pocketed division of the brainstem, the medulla oblongata. Thus, D matches I.

• This gives the matching sequence: A-IV, B-III, C-II, D-I.

Step 4: Final Answer:
This sequence corresponds to Option (C).