Lobules of testis
The glandular structure of the testis consists of numerous lobules.
Lobules of testis | |
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Details | |
Identifiers | |
Latin | lobuli testis |
Anatomical terminology |
Their number, in a single testis, is estimated by Berres at 250, and by Krause at 400.[1] Anatomic studies have demonstrated figures of 250–290 for the same.[2]
They differ in size according to their position, those in the middle of the gland being larger and longer.
The lobules are conical in shape, the base being directed toward the circumference of the organ, the apex toward the mediastinum testis.
Each lobule is contained in one of the intervals between the fibrous septa which extend between the mediastinum testis and the tunica albuginea, and consists of from one to three, or more, minute convoluted tubes, the tubuli seminiferi.
Additional images
- Vertical section of the testis, to show the arrangement of the ducts
References
This article incorporates text in the public domain from the 20th edition of Gray's Anatomy (1918)
- Basu, SC. (2011). Male Reproductive Dysfunction. Jaypee Brothers Publishers. p. 16. ISBN 978-93-5025-703-6.
- Countouris, N; Holstein, AF (Nov–Dec 1985). "[How many testicular lobules does a human testicle contain? Reexamination of an old problem]". Andrologia (in German). 17 (6): 525–31. doi:10.1111/j.1439-0272.1985.tb01707.x. PMID 4083540. S2CID 86699538.
External links
- Anatomy photo:36:st-1401 at the SUNY Downstate Medical Center - "Inguinal Region, Scrotum and Testes: Testis"