All are true about spinal cord except :–

Options

A. Epidural space around meninges is present
B. Pseudounipolar neurons in ventral root
C. Sensory fibre in dorsal root and motor fibre in ventral root
D. Lateral horn related to ANS

Answer

To solve the question "All are true about spinal cord except:", we need to evaluate each statement related to the spinal cord and identify the one that is incorrect.

### Step-by-Step Solution:

1. **Understanding the Structure of the Spinal Cord**:
- The spinal cord is a cylindrical structure that runs within the vertebral column and is protected by the vertebrae. It is divided into segments that correspond to different parts of the body.

2. **Evaluating the Options**:
- **Option 1: Epidural space around meninges is present**:
- This statement is true. The epidural space is indeed present around the meninges, which are the protective coverings of the spinal cord.

- **Option 2: Pseudo-unipolar neurons in the ventral root**:
- This statement is false. The ventral root contains multipolar neurons, not pseudo-unipolar neurons. Pseudo-unipolar neurons are typically found in sensory ganglia, such as the dorsal root ganglia.

- **Option 3: Sensory fibers in the dorsal root and motor fibers in the ventral root**:
- This statement is true. Sensory fibers enter the spinal cord through the dorsal root, while motor fibers exit through the ventral root.

- **Option 4: Lateral horn related to the ANS**:
- This statement is true. The lateral horn of the spinal cord contains neurons that are part of the autonomic nervous system (ANS).

3. **Identifying the Incorrect Statement**:
- Based on the evaluation, the incorrect statement is the second option regarding pseudo-unipolar neurons in the ventral root. The ventral root does not contain pseudo-unipolar neurons; it contains multipolar neurons.

### Conclusion:
The answer to the question is that the statement about pseudo-unipolar neurons in the ventral root is incorrect.

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