Question

Given below are two statements:
Statement I: The cerebral hemispheres are connected by nerve tract known as corpus callosum. 
Statement II: The brain stem consists of the medulla oblongata, pons and cerebrum. 
In the light of the above statements, choose the most appropriate answer from the options given below:

• A. Both Statement I and Statement II are correct.
• B. Both Statement I and Statement II are incorrect
• C. Statement I is correct but Statement II is incorrect
• D. Statement I is incorrect but Statement II is correct

Answer 1

The Correct Option is C

To determine the validity of the given statements, we must evaluate them individually.

Statement I: "The cerebral hemispheres are connected by a nerve tract known as the corpus callosum."

The cerebral hemispheres of the brain are indeed connected by a thick band of fibers known as the corpus callosum. This structure facilitates communication between the two hemispheres, allowing them to work together harmoniously. Therefore, Statement I is correct.

Statement II: "The brain stem consists of the medulla oblongata, pons, and cerebrum."

The brain stem is a crucial part of the central nervous system but it consists of the medulla oblongata, pons, and midbrain—not the cerebrum. The cerebrum is separate from the brain stem and forms the largest part of the brain. Consequently, Statement II is incorrect.

Based on the analysis, the following option is accurate: "Statement I is correct but Statement II is incorrect."

Answer 2

Evaluating Statements about Brain Structure:

• Statement I: Correct – The corpus callosum connects the left and right cerebral hemispheres.
• Statement II: Incorrect – The brain stem consists of the medulla oblongata, pons, and midbrain, not the cerebrum.

Thus, the correct answer is (3) Statement I is correct but Statement II is incorrect.