![This is blank.](https://digitalhistology.org/wp-content/themes/histology-unified/imgs/trans.png)
Peripheral nerve
These cross sections of peripheral nerves contain unmyelinated axons. Each nerve is surrounded by a distinct perineurium. 1000x, 3000x
![Unmyelinated axons <p>These cross sections of peripheral nerves contain unmyelinated axons. Each nerve is surrounded by a distinct perineurium. 1000x, 3000x</p>](https://digitalhistology.org/wp-content/uploads/2017/05/T.N.PN-14-1-ping.png)
Unmyelinated axons
These cross sections of peripheral nerves contain unmyelinated axons. Each nerve is surrounded by a distinct perineurium. 1000x, 3000x
![Schwann cell nuclei <p>These cross sections of peripheral nerves contain unmyelinated axons. Each nerve is surrounded by a distinct perineurium. 1000x, 3000x</p>](https://digitalhistology.org/wp-content/uploads/2017/05/T.N.PN-14-2-ping.png)
Schwann cell nuclei
These cross sections of peripheral nerves contain unmyelinated axons. Each nerve is surrounded by a distinct perineurium. 1000x, 3000x
![Perineurium > <p>The perineurial cells form a compact wrapping around fascicles. The cells of the perinerium are highly unique and contribute to the formation of the protective blood-nerve barrier. They are distinct from fibroblasts which can be found within the fascicle where the secrete collagen fibrils.</p>](https://digitalhistology.org/wp-content/uploads/2017/05/T.N.PN-14-3-ping.png)
Perineurium >
The perineurial cells form a compact wrapping around fascicles. The cells of the perinerium are highly unique and contribute to the formation of the protective blood-nerve barrier. They are distinct from fibroblasts which can be found within the fascicle where the secrete collagen fibrils.
![Fibroblasts <p>The perineurial cells form a compact wrapping around fascicles. The cells of the perinerium are highly unique and contribute to the formation of the protective blood-nerve barrier. They are distinct from fibroblasts which can be found within the fascicle where the secrete collagen fibrils.</p>](https://digitalhistology.org/wp-content/uploads/2017/05/T.N.PN-14-4-ping.png)
Fibroblasts
The perineurial cells form a compact wrapping around fascicles. The cells of the perinerium are highly unique and contribute to the formation of the protective blood-nerve barrier. They are distinct from fibroblasts which can be found within the fascicle where the secrete collagen fibrils.