Sensory neurons and motor neurons are inter connected in CNS by  

Options

A. myelinated neuron
B. non myelinated neuron
C. interneuron
D. all

Answer

To answer the question "Sensory neurons and motor neurons are interconnected in CNS by," we will follow these steps:

### Step-by-Step Solution:

1. **Identify the Types of Neurons**:
- There are three main types of neurons: sensory neurons, motor neurons, and interneurons.
- Sensory neurons carry impulses from sensory organs to the central nervous system (CNS).
- Motor neurons carry impulses from the CNS to muscles or glands.

2. **Understand the Role of Interneurons**:
- Interneurons serve as connectors between sensory and motor neurons within the CNS.
- They process information and facilitate communication between the sensory input and motor output.

3. **Evaluate the Options**:
- **Myelinated Neurons**: These are neurons that have a myelin sheath, which can be either sensory, motor, or interneurons. This option does not specifically connect sensory and motor neurons.
- **Non-Myelinated Neurons**: These are neurons without a myelin sheath and can also be sensory, motor, or interneurons. This option is also not specific to the connection between sensory and motor neurons.
- **Interneurons**: These are specifically responsible for connecting sensory neurons to motor neurons in the CNS.

4. **Conclusion**:
- The correct answer to the question is that sensory neurons and motor neurons are interconnected in the CNS by **interneurons**.

### Final Answer:
Sensory neurons and motor neurons are interconnected in the CNS by **interneurons**.

---