Internal pudendal artery
| Internal pudendal artery | |
|---|---|
 Internal iliac arterywith branches, including internal pudendal artery. | |
 The superficial branches of the internal pudendal artery. | |
| Details | |
| Source | Internal iliac artery |
| Branches | Inferior rectal arteryand others |
| Vein | Internal pudendal veins |
| Supplies | External genitalia,perineum |
| Identifiers | |
| Latin | arteria pudenda interna |
| TA98 | A12.2.15.038 |
| TA2 | 4341 |
| FMA | 18835 |
| Anatomical terminology | |
Theinternal pudendal arteryis one of the threepudendal arteries.It branches off theinternal iliac artery,and provides blood to theexternal genitalia.
Structure[edit]
The internal pudendalarteryis the terminal branch of the anterior trunk of theinternal iliac artery.[1]It is smaller in thefemalethan in themale.
Path[edit]
It arises from the anterior division of internal iliac artery. It runs on the lateral pelvic wall. It exits thepelvic cavitythrough thegreater sciatic foramen,inferior to thepiriformis muscle,to enter thegluteal region.
It then curves around thesacrospinous ligamentto enter theperineumthrough thelesser sciatic foramen.
It travels through thepudendal canalwith theinternal pudendal veinsand thepudendal nerve.
Branches[edit]
The internal pudendal artery gives off the following branches:
Thedeep artery of clitorisis a branch of the internal pudendal artery and supplies theclitoral crura.Another branch of the internal pudendal artery is thedorsal artery of clitoris.
Some sources consider theurethral arterya direct branch of the internal pudendal artery,[2]while others consider it a branch of theperineal artery.[citation needed]
In males, the internal pudendal artery also gives rise to the perforating arteries of the penis.[1]
Variation[edit]
Around 70% of men have an accessory internal pudendal artery.[1]This usually does not originate from the internal iliac artery, instead originating from theexternal iliac artery,theobturator artery,or thevesical arteries.[1]
Function[edit]
The internal pudendal artery supplies blood to theexternal genitalia.
Clinical significance[edit]
In women, the internal pudendal artery may be damaged duringchildbirth.[3]This may cause ahaematoma,which usually resolves without treatment, but may form an infectedabscess.[3]
Additional images[edit]
-
Right hip bone. Internal surface. -
Dissection of side wall of pelvis showing sacral and pudendal plexuses. -
The deeper branches of the internal pudendal artery. -
Diagram of the arteries of thepenis. -
The penis in transverse section, showing the blood vessels. -
Internal pudendal artery. Deep dissection. Lateral view. -
Diagram of the arteries of thevulva.
See also[edit]
References[edit]
- ^abcdefgKeegan, Kirk A.; Penson, David F. (2013-01-01), Creager, Mark A.; Beckman, Joshua A.; Loscalzo, Joseph (eds.),"Chapter 28 - Vasculogenic Erectile Dysfunction",Vascular Medicine: A Companion to Braunwald's Heart Disease (Second Edition),Philadelphia: W.B. Saunders, pp. 341–348,ISBN978-1-4377-2930-6,retrieved2021-01-14
- ^"Internal pudendal artery"atDorland's Medical Dictionary
- ^abGilbert, Robert O.; Cable, Christina; Fubini, Susan L.; Steiner, Adrian (2017-01-01), Fubini, Susan L.; Ducharme, Norm G. (eds.),"Chapter 16 - Surgery of the Bovine Reproductive System and Urinary Tract",Farm Animal Surgery (Second Edition),W.B. Saunders, pp. 439–503,ISBN978-0-323-31665-1,retrieved2021-01-14
External links[edit]
- Anatomy figure: 41:04-00at Human Anatomy Online, SUNY Downstate Medical Center - "Inferior view of female perineum, branches of the internal pudendal artery."
- Anatomy figure: 41:04-06at Human Anatomy Online, SUNY Downstate Medical Center - "Inferior view of female perineum, branches of the internal pudendal artery."
- Anatomy figure: 42:03-01at Human Anatomy Online, SUNY Downstate Medical Center - "Branches of internal pudendal artery in the male perineum."
- Anatomy figure: 43:07-14at Human Anatomy Online, SUNY Downstate Medical Center - "Sagittal view of the internal iliac artery and its branches in the female pelvis."
- Anatomy figure: 44:06-00at Human Anatomy Online, SUNY Downstate Medical Center - "Sagittal view of the internal iliac artery and its branches in the male pelvis."
- Anatomy image:9086at the SUNY Downstate Medical Center
- MedicalMnemonics:2503
- pelvisat The Anatomy Lesson by Wesley Norman (Georgetown University) (pelvicarteries)
- figures/chapter_32/32-2.HTM:Basic Human Anatomy at Dartmouth Medical School
- figures/chapter_32/32-3.HTM:Basic Human Anatomy at Dartmouth Medical School
- Diagram at MSU
