Pampiniform plexus
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| Vein: Pampiniform plexus | |
|---|---|
 | |
| Spermatic veins. | |
| Latin | plexus pampiniformis |
| Gray's | subject #258 1240 |
| Drains from | testicle, epididymis |
| Drains to | testicular vein |
| Dorlands / Elsevier | p_24/13490561 |
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The spermatic veins emerge from the back of the testis, and receive tributaries from the epididymis: they unite and form a convoluted plexus, the plexus pampiniformis, which forms the chief mass of the cord.
In addition to its function in venous return from the testes, the pampiniform plexis also plays a roles in the temperature regulation of the testes. It acts as a heat exchanger, cooling blood in adjacent arteries.
The vessels composing this plexus are very numerous, and ascend along the cord in front of the ductus deferens; below the subcutaneous inguinal ring they unite to form three or four veins, which pass along the inguinal canal, and, entering the abdomen through the abdominal inguinal ring, coalesce to form two veins.
These again unite to form a single vein, the testicular vein, which opens on the right side into the inferior vena cava, at an acute angle, and on the left side into the left renal vein, at a right angle.
External links
- SUNY Labs 36:st-0701 - "Inguinal Region, Scrotum and Testes: Veins"
- Histology at BU 17304ooa - "Male Reproductive System: spermatic cord, pampiniform plexus"
- Histology at OU 81_05 - "Spermatic cord"
- Cross section at UV pembody/body18b
- Diagram at rutgers.edu
This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.
Acknowledgement and Attribution Regarding Sources of Content
Some of the initial content on this page may be incorporated in part from copyleft sources in the public domain including wikis such as Wikipedia and AskDrWiki. Drug information for patients came from the The National Library of Medicine. Infectious disease information may have come from the Centers for Disease Control (CDC). Differential Diagnoses are drawn from clinicians as well as an amalgamation of 3 sources: 1.The Disease Database; 2. Kahan, Scott, Smith, Ellen G. In A Page: Signs and Symptoms. Malden, Massachusetts: Blackwell Publishing, 2004:3; 3. Sailer, Christian, Wasner, Susanne. Differential Diagnosis Pocket. Hermosa Beach, CA: Borm Bruckmeir Publishing LLC, 2002:7 .
