The pudendal nerves and internal pudendal arteries are the key neurovascular structures supplying the perineum. They follow a relatively complicated course as they exit the pelvis and enter to supply the perineum. Learn about their course in the video given here. 0.00 introduction and structures of the pelvis and perineum 2.43 internal pudendal artery 4.02 inferior rectal artery 4.25 perineal artery and posterior scrotal branch 5.12 artery to bulb of penis 5.32 deep artery of penis 6.04 dorsal artery of penis 7.42 pudendal nerve 8.27 inferior rectal nerve 8.40 dorsal nerve of penis 9.08 perineal nerve-deep and superficial branches 9.41 posterior scrotal nerve