Select the incorrect statement in the following .

Options

A. Multipolar neurons are found in Cerebral cortex.
B. Unipolar neurons had cell body with one axon only.
C. The myelinated nerve fibres are enveloped with Schwann cells.
D. The post synaptic neurons are filled with neurotransmitter containing vesicles.

Answer

To solve the question of selecting the incorrect statement about neurons, we will analyze each option step by step.

### Step-by-Step Solution:

1. **Option A: Multipolar neurons are found in the cerebral cortex.**
- **Analysis:** Multipolar neurons are indeed found in the cerebral cortex. They are the most common type of neurons in the brain and have multiple dendrites and a single axon.
- **Conclusion:** This statement is **correct**.

2. **Option B: Unipolar neurons have a cell body with one axon only.**
- **Analysis:** Unipolar neurons typically have a single process that extends from the cell body, which splits into two branches: one that acts as an axon and the other that acts as a dendrite. Therefore, they do have one axon.
- **Conclusion:** This statement is **correct**.

3. **Option C: The myelinated nerve fibers are enveloped with Schwann cells.**
- **Analysis:** Myelinated nerve fibers in the peripheral nervous system are indeed surrounded by Schwann cells, which form the myelin sheath around the axons.
- **Conclusion:** This statement is **correct**.

4. **Option D: The postsynaptic neurons are filled with neurotransmitters containing vesicles.**
- **Analysis:** This statement is misleading. The presynaptic neuron contains vesicles filled with neurotransmitters, which are released into the synaptic cleft to bind to receptors on the postsynaptic neuron. The postsynaptic neuron does not contain these vesicles filled with neurotransmitters; rather, it has receptors for them.
- **Conclusion:** This statement is **incorrect**.

### Final Answer:
- The incorrect statement is **Option D**: "The postsynaptic neurons are filled with neurotransmitters containing vesicles."