Which of the following structures or regions is incorrectly paired with function ?

Options

A. Corpus : band of fibres connecting left and right cerebral hemispheres.
B. Hypothalamus : production of releasing hormones and regulation of temperature, hunger and thirst.
C. Limbic system : Consists of fibres tracts that interconnect different regions of brain, control movement.
D. Medulla oblongata : Controls respiration and cardiovascular reflexes.

Answer

To solve the question of which structure or region is incorrectly paired with its function, we will analyze each option provided.

### Step-by-Step Solution:

1. **Understand the Question**: The question requires us to identify which structure or region of the nervous system is incorrectly matched with its function.

2. **Analyze Each Option**:
- **Option A: Corpus Callosum**
- Function: Connects the left and right cerebral hemispheres.
- Analysis: This is correct. The corpus callosum is indeed a band of fibers that facilitates communication between the two hemispheres of the brain.

- **Option B: Hypothalamus**
- Function: Produces releasing hormones and regulates temperature, hunger, and thirst.
- Analysis: This is also correct. The hypothalamus plays a crucial role in hormone production and maintaining homeostasis, including temperature regulation and hunger.

- **Option C: Limbic System**
- Function: Consists of fiber tracts that interconnect different regions of the brain and control movement.
- Analysis: This is incorrect. The limbic system is primarily involved in emotional responses, memory, and motivation. It consists of structures such as the amygdala and hippocampus, but it does not primarily control movement.

- **Option D: Medulla Oblongata**
- Function: Controls respiration and cardiovascular reflexes.
- Analysis: This is correct. The medulla oblongata contains vital centers that regulate breathing and heart rate.

3. **Identify the Incorrect Pair**: Based on the analysis, Option C is incorrectly paired with its function.

4. **Conclusion**: The answer to the question is Option C, as it does not accurately describe the function of the limbic system.

### Final Answer:
**Option C: Limbic System - Incorrectly paired with its function.**