The following transmit regulatory impulses from CNS to concerned tissue

Options

A. Efferent process
B. Reticular fibres
C. Afferent process
D. Afferent fibres

Answer

To solve the question "The following transmit regulatory impulses from CNS to concerned tissue," we need to analyze the options provided and identify which one is responsible for transmitting impulses from the central nervous system (CNS) to the target tissues.

### Step-by-Step Solution:

1. **Understanding the Question**:
- The question asks for the type of structure that transmits regulatory impulses from the CNS to the concerned tissues. This involves understanding the direction of impulse transmission.

2. **Identifying the Options**:
- The options provided are:
- A) Efferent process
- B) Reticula fibrosis
- C) Afferent process
- D) Efferent fibrosis

3. **Analyzing Each Option**:
- **Option A: Efferent process**:
- Efferent processes (often referring to efferent neurons or motor neurons) carry impulses away from the CNS to the muscles or glands. This is the correct function that matches the question.

- **Option B: Reticula fibrosis**:
- Reticula fibrosis refers to fibrous connective tissue that provides support to organs but does not transmit impulses. Hence, this option is incorrect.

- **Option C: Afferent process**:
- Afferent processes (or sensory neurons) carry impulses towards the CNS from the sensory organs. This is the opposite direction of what the question is asking, making this option incorrect.

- **Option D: Efferent fibrosis**:
- Efferent fibrosis is not a standard term in neurobiology. It seems to be a misnomer and does not relate to the transmission of impulses. Therefore, this option is also incorrect.

4. **Conclusion**:
- After analyzing all the options, the correct answer is **Option A: Efferent process**, as it is responsible for transmitting impulses from the CNS to the concerned tissues.

### Final Answer:
**The correct answer is Option A: Efferent process.**