Select the incorrect statement .

Options

A. Efferent neurons Carry impulse from CNS to peripheral tissues .
B. Granular bodies are found in cytons of neuron.
C. Unipolar neuron has only dendrite .
D. Duramater is in contact with cranium.

Answer

To solve the question of selecting the incorrect statement, we will analyze each of the provided statements step by step.

### Step-by-Step Solution:

1. **Statement 1: Efferent neuron carries impulse from CNS to peripheral tissue.**
- **Analysis:** This statement is correct. Efferent neurons transmit signals away from the central nervous system (CNS) to the peripheral tissues, such as muscles and glands, to elicit a response.

2. **Statement 2: Granular bodies are found in the cytons of the neuron and this granular body is called Nissl's body.**
- **Analysis:** This statement is also correct. Nissl bodies, which are composed of rough endoplasmic reticulum and ribosomes, are indeed found in the cell body (cyton) of neurons and are involved in protein synthesis.

3. **Statement 3: Unipolar neurons have only dendrites.**
- **Analysis:** This statement is incorrect. Unipolar neurons have a single process that branches into two parts: one acts as a dendrite and the other as an axon. Therefore, they do not have only dendrites; they also have a neurite (axon).

4. **Statement 4: Dura mater is in contact with the cranium.**
- **Analysis:** This statement is correct. The dura mater is the outermost layer of the meninges that surrounds the brain and spinal cord, and it is indeed in contact with the cranium.

### Conclusion:
The incorrect statement is **Statement 3: Unipolar neurons have only dendrites.**

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