Which role of neuron regarding different kinds of stimuli is absent :

Options

A. detect
B. receive
C. transmit
D. protect

Answer

To solve the question "Which role of neuron regarding different kinds of stimuli is absent?", we can follow these steps:

### Step 1: Understand the Types of Neurons
Neurons are classified into three main types:
- **Sensory Neurons**: These neurons detect stimuli from the environment and send signals to the central nervous system (CNS).
- **Interneurons**: These neurons process the information received from sensory neurons and transmit signals to motor neurons.
- **Motor Neurons**: These neurons carry signals from the CNS to effectors (muscles or glands) to elicit a response.

**Hint**: Remember the functions of each type of neuron and how they interact with stimuli.

### Step 2: Analyze the Options
The question provides options regarding the roles of neurons:
1. Detect stimuli (Sensory Neurons)
2. Receive signals (Motor Neurons)
3. Transmit signals (Interneurons)
4. Protect

**Hint**: Identify which of these roles is not typically associated with neurons.

### Step 3: Identify the Absent Role
- **Detect stimuli**: This is the primary function of sensory neurons.
- **Receive signals**: This is a function of motor neurons, as they receive signals from the CNS.
- **Transmit signals**: This is a function of interneurons, which transmit signals between sensory and motor neurons.
- **Protect**: Neurons do not have a role in protection; this function is typically associated with other types of cells, like glial cells.

**Hint**: Consider which option does not fit the typical roles of neurons.

### Step 4: Conclusion
The role of neuron regarding different kinds of stimuli that is absent is **"Protect"** (Option 4). Neurons are primarily involved in detecting, receiving, and transmitting signals but do not perform protective functions.

**Final Answer**: The correct answer is **Option 4: Protect**.