ANS effects on:

Options

A. reflex actions
B. sensory organs
C. internal organs
D. none of these

Answer

### Step-by-Step Solution:

1. **Understanding the Autonomic Nervous System (ANS)**:
- The ANS is a part of the peripheral nervous system that controls involuntary bodily functions. It regulates internal organs, blood vessels, smooth muscles, and glands.

2. **Identifying the Options**:
- The question asks about the effects of the ANS. The options provided include:
- Reflex Action
- Sensory Organs
- Internal Organs
- None of these

3. **Analyzing Each Option**:
- **Reflex Action**: This is primarily controlled by the spinal cord and brainstem (medulla oblongata and midbrain), not the ANS. Thus, this option is incorrect.
- **Sensory Organs**: These are primarily under the control of the central nervous system (CNS), which processes sensory information. Therefore, this option is also incorrect.
- **Internal Organs**: The ANS directly regulates the function of internal organs such as the heart, lungs, and digestive system. This is the correct option.
- **None of These**: Since we have identified that the ANS does affect internal organs, this option is incorrect.

4. **Conclusion**:
- The correct answer is that the Autonomic Nervous System affects **Internal Organs**. It has two divisions: the sympathetic nervous system, which prepares the body for stressful situations (increasing heart rate), and the parasympathetic nervous system, which conserves energy and promotes a state of calm (decreasing heart rate).