Penis anatomy @ Wikimedia

Collection of numerous  male anatomy photos and descriptions. I'm placing the links to the picutres and descriptions, since Google will get mad if I post the pics on here...
This does contact adult content, but it is for educational purposes...

1. Frenulum close up 
2. male sexual response cycle
3. penis flaccid
4. penis erected top view
5. Frenulum close-up (2)
6. Penis glans close-up
7. penis erected