Corpus cavernosum penis
Corpus cavernosum penis | |
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![]() Transverse section of the penis. | |
![]() The constituent cavernous cylinders of the penis. | |
Details | |
Part of | Penis |
Artery | Cavernous artery[1] |
Vein | Internal pudendal veins[1] |
Identifiers | |
Latin | corpus cavernosum penis |
TA | A09.4.01.014 |
FMA | 19618 |
Anatomical terminology |
A corpus cavernosum penis (singular) (from Latin, characterised by "cavities/ hollows"[2] of the penis, pl.: corpora cavernosa) is one of two sponge-like sections of tissue in the male penis. They contain most of the blood during an erection in the penis of several animals during an erection.[3][4][5][6]. The term literally means "cave-like body"
It is homologous to the corpus cavernosum clitoridis in the female.
Process
[change | change source]The corpus cavernosum are placed along the length of the penis. They are found along the penis shaft, from the pubic bones to the head of the penis. The spongy tissue fills with blood. The blood comes from arteries down the length of the penis. The blood fills the corpora cavernosa. This causes it to swell. When swollen, it holds 90% of the blood involved in an erection. This increases both the length and circumference of the penis.
Blood can leave only through a system of veins around the outside wall of the corpus cavernosum. The expanding tissue constricts these veins. This preventing blood from leaving. The penis becomes rigid as a result.
References
[change | change source]- ↑ 1.0 1.1 Panchatsharam, Pranau K.; Durland, Justin; Zito, Patrick M. (1 May 2023). "Physiology, Erection". StatPearls. Treasure Island, Florida: StatPearls Publishing. PMID 30020650. Retrieved 20 November 2023.
- ↑ Charlton T. Lewis; Charles Short (eds.). "cavernosus". A Latin Dictionary – via Logeion.
- ↑ Hedlund, P.; Matsumoto, K.; Andersson, K. E. (2005). "Animal models of erectile dysfunction". Current Protocols in Pharmacology. Chapter 5: Unit5.41. doi:10.1002/0471141755.ph0541s29. PMID 21953393.
- ↑ Werner Lierse (6 December 2012). Applied Anatomy of the Pelvis. Springer Science & Business Media. ISBN 978-3-642-71368-2.
- ↑ Heide Schatten; Gheorghe M. Constantinescu (21 March 2008). Comparative Reproductive Biology. John Wiley & Sons. ISBN 978-0-470-39025-2.
- ↑ Michele Bertolotto (22 December 2007). Color Doppler US of the Penis. Springer Science & Business Media. pp. 157–. ISBN 978-3-540-36677-5.
Other websites
[change | change source]- SUNY Labs 42:st-1102 - "The Male Perineum and the Penis: Penis"