The correct sequence of the membranes of the nerve of PNS from inside to outside is

Options

A. Axolemma `to` neurilemma `to` endoneurium `to` perineurium `to` epineurium
B. Axolemma `to` neurilemma `to` endoneurium `to` epineurium `to` perineurium
C. Neurilemma `to` axolemma `to` endoneurium `to` perineurium `to` epineurium
D. Axolemma `to` neurilemma `to` perineurium `to` endoneurium `to` epineurium

Answer

To determine the correct sequence of the membranes of the nerve in the peripheral nervous system (PNS) from inside to outside, we can break down the layers as follows:

### Step-by-Step Solution:

1. **Identify the innermost layer**: The first layer from the inside is the **exolema**. This is the outermost layer of the axon and contains the cytoplasm.

2. **Next layer**: The second layer is the **neurolema**. This layer surrounds the axon and is essential for the regeneration of nerves.

3. **Third layer**: The third layer is the **endoneurium**. This connective tissue surrounds individual nerve fibers (axons).

4. **Fourth layer**: The fourth layer is the **perineurium**. This layer encloses a bundle of nerve fibers, forming a fascicle.

5. **Outermost layer**: Finally, the outermost layer is the **epineurium**. This layer surrounds the entire nerve, providing protection and support.

### Correct Sequence:
So, the correct sequence of the membranes of the nerve of PNS from inside to outside is:
- Exolema
- Neurolema
- Endoneurium
- Perineurium
- Epineurium

### Answer:
The correct answer is option A: Exolema, Neurolema, Endoneurium, Perineurium, Epineurium.

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