Anatomy study note · Perineum
Dorsal vessels of the penis
The dorsal artery of the penis (a branch of the internal pudendal artery) runs along the dorsum deep to the deep fascia, supplying the skin and fasciae. The deep dorsal vein drains the erectile tissue.
Key points
- Dorsal artery: from the internal pudendal; skin and fascia.
- Deep dorsal vein → prostatic venous plexus.
- Compression of the deep dorsal vein helps erection.
- Vessels: mesodermal, from angioblastic tissue.
- Erection: helicine arteries dilate (parasympathetic).
- Artery: thick media. Vein: thin wall, thick adventitia, valves.
The full note in the atlas also covers
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Written from
- Snell’s Clinical Anatomy by Regions, 10th ed., ch. 10, PDF pp. 1202, 1204–1206
- Inderbir Singh’s Human Embryology, ch. 15, PDF p. 236
- BRS Cell Biology & Histology, 7th ed., ch. 11, PDF pp. 197–199, 203–205; ch. 20, PDF p. 373
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