Internal pudendal artery
From Wikipedia, the free encyclopedia
| Artery: Internal pudendal artery | |
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| Left gluteal region, showing surface markings for arteries and sciatic nerve. | |
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| The superficial branches of the internal pudendal artery. | |
| Latin | arteria pudenda interna |
| Gray's | subject #155 617 |
| Supplies | external genitalia, perineum |
| Source | internal iliac artery |
| Vein | Internal pudendal veins |
| Dorlands/Elsevier | a_61/12155618 |
The internal pudendal artery is an artery that branches off the internal iliac artery, providing blood to the external genitalia.
The internal pudendal artery is the terminal branch of the anterior trunk of the internal iliac artery. It is smaller in the female than in the male.
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[edit] Path
It exits the pelvic cavity through the greater sciatic foramen to enter the gluteal region.
It then curves around the sacrospinous ligament to enter the perineum through the lesser sciatic foramen.
It travels through the pudendal canal with the internal pudendal veins and the pudendal nerve.
[edit] Branches
The internal pudendal artery gives off the following branches:
| In females | In males | Description |
| Inferior rectal artery | Inferior rectal artery | to anal canal |
| Perineal artery | Perineal artery | supplies transversus perinei superficialis muscle |
| Posterior labial branches | Posterior scrotal branches | - |
| Artery of bulb of vestibule | Artery of bulb of penis | supplies bulbourethral gland |
| Dorsal artery of clitoris | Dorsal artery of penis | - |
| Deep artery of clitoris | Deep artery of penis | to corpus cavernosum penis |
Some sources consider the urethral artery a direct branch of the internal pudendal artery[1], while others consider it a branch of the perineal artery.[2]
In males, the internal pudendal artery also gives rise to the perforating arteries of the penis.
[edit] Additional images
 Right hip bone. Internal surface. |
 The arteries of the pelvis. |
 Dissection of side wall of pelvis showing sacral and pudendal plexuses. |
 The deeper branches of the internal pudendal artery. |
 Diagram of the arteries of the penis. |
 The penis in transverse section, showing the bloodvessels. |
[edit] See also
[edit] References
[edit] External links
- SUNY Figs 41:04-06 - "Inferior view of female perineum, branches of the internal pudendal artery."
- SUNY Figs 42:03-01 - "Branches of internal pudendal artery in the male perineum."
- SUNY Figs 43:07-14 - "Sagittal view of the internal iliac artery and its branches in the female pelvis. "
- SUNY Figs 44:06-00 - "Sagittal view of the internal iliac artery and its branches in the male pelvis. "
- SUNY Anatomy Image 9086
- Mnemonic at medicalmnemonics.com 2503
- Norman/Georgetown pelvis (pelvicarteries)
- Human anatomy at Dartmouth figures/chapter_32/32-2.HTM
- Human anatomy at Dartmouth figures/chapter_32/32-3.HTM
- Diagram at MSU
