![This is blank.](https://digitalhistology.org/wp-content/themes/histology-unified/imgs/trans.png)
Medium vein
The features of a medium vein are better seen in this higher magnification image. Most named veins are medium to large veins. 300x
![Endothelium <p>The features of a medium vein are better seen in this higher magnification image. Most named veins are medium to large veins. 300x</p>](https://digitalhistology.org/wp-content/uploads/2017/07/Or.CV_.V.V-10-1-ping.png)
Endothelium
The features of a medium vein are better seen in this higher magnification image. Most named veins are medium to large veins. 300x
![Tunica media <p>The features of a medium vein are better seen in this higher magnification image. Most named veins are medium to large veins. 300x</p>](https://digitalhistology.org/wp-content/uploads/2017/07/Or.CV_.V.V-10-2-ping.png)
Tunica media
The features of a medium vein are better seen in this higher magnification image. Most named veins are medium to large veins. 300x
![Tunica adventitia <p>The features of a medium vein are better seen in this higher magnification image. Most named veins are medium to large veins. 300x</p>](https://digitalhistology.org/wp-content/uploads/2017/07/Or.CV_.V.V-10-3-ping.png)
Tunica adventitia
The features of a medium vein are better seen in this higher magnification image. Most named veins are medium to large veins. 300x
![Valve flaps <p>The features of a medium vein are better seen in this higher magnification image. Most named veins are medium to large veins. 300x</p>](https://digitalhistology.org/wp-content/uploads/2017/07/Or.CV_.V.V-10-4-ping.png)
Valve flaps
The features of a medium vein are better seen in this higher magnification image. Most named veins are medium to large veins. 300x