Portions of the nervous system are specialized to detect change in the internal and external environments. Which of the following functions best fits this description?

Options

A. Sensory
B. Motor
C. Intuitive
D. Integrative

Explanation

To solve the question regarding which function of the nervous system is specialized to detect changes in the internal and external environments, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks which part of the nervous system is responsible for detecting changes in the environment. This involves recognizing the roles of different types of neurons and systems within the nervous system.

2. **Identifying the Functions**: The options provided are sensory, motor, intuitive, and integrative functions. We need to analyze each of these functions to determine which one is related to detecting changes.

3. **Analyzing Sensory Function**: The sensory function is responsible for receiving stimuli from the environment (both internal and external) and sending this information to the brain. Sensory neurons detect changes such as light, sound, temperature, and pressure.

4. **Analyzing Motor Function**: The motor function is the opposite of sensory; it involves sending signals from the brain to the muscles or glands to produce a response. This function does not primarily deal with detection but rather with action.

5. **Analyzing Intuitive Function**: The term "intuitive" is not commonly used in the context of the nervous system's functions. It may refer to instinctive responses but is not a specific function of the nervous system.

6. **Analyzing Integrative Function**: The integrative function involves processing sensory information and making decisions based on that information. While it is important, it does not directly detect changes; rather, it interprets them after they have been detected.

7. **Conclusion**: Based on the analysis, the sensory function is the one that best fits the description of detecting changes in the internal and external environments. Therefore, the correct answer is **sensory**.

### Final Answer:
The function that best fits the description of detecting changes in the internal and external environments is **sensory**.