Select the correct statement regarding spinal nerves

Options

A. Dorsal root is motor and sensory both
B. Ventral root is sensory and motor both
C. Dorsal root is sensory and ventral root is motor
D. Dorsal root is motor and ventral root is sensory

Answer

To solve the question regarding spinal nerves, let's break down the information step by step.

### Step-by-Step Solution:

1. **Understanding Spinal Nerves**:
- Spinal nerves are part of the peripheral nervous system and consist of two main roots: the dorsal root and the ventral root.

2. **Identifying the Dorsal Root**:
- The dorsal root is primarily responsible for sensory functions. It carries sensory information from the body (affected organs) to the central nervous system (CNS).

3. **Identifying the Ventral Root**:
- The ventral root, on the other hand, is primarily responsible for motor functions. It transmits motor commands from the central nervous system to the muscles or glands (affected organs).

4. **Evaluating the Options**:
- **Option A**: Dorsal root is motor and sensory both. (Incorrect)
- **Option B**: Ventral root is sensory and motor both. (Incorrect)
- **Option C**: Dorsal root is sensory and ventral root is motor. (Correct)
- **Option D**: Dorsal root is motor and ventral root is sensory. (Incorrect)

5. **Conclusion**:
- Based on the definitions and functions of the roots of spinal nerves, the correct statement is **Option C**: "Dorsal root is sensory and ventral root is motor."

### Final Answer:
The correct statement regarding spinal nerves is **Option C**: Dorsal root is sensory and ventral root is motor.

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