Tunica albuginea of testis
Tunica albuginea of testis | |
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File:Testicle-Revised.jpg
A diagram of the major components of an adult human testicle, including the following numbered items: 1. Tunica albuginea, 2. Septula testis, 3. Lobulus testis, 4. Mediastinum testis, 5. Tubuli seminiferi contorti, 6. Tubuli seminiferi recti, 7. Rete testis, 8. Ductuli efferentes testis, 9a. Head of epididymis, 9b. Body of epididymis, 9.c Tail of epididymis,10. Vas deferens, 11a. Tunica vaginalis (parietal lamina), 11b. Tunica vaginalis (visceral lamina), and 12. Cavity of tunica vaginalis.
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File:Testicle-bull.jpg
Section of a testicle of a bull, blood vessels injected with red gelatine. 1 parenchyma, 2 mediastinum testis, 3 tunica albuginea, 4 tail of epididymis, 5 head of epididymis, 6 spermatic cord with convoluted testicular artery
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Details | |
Latin | tunica albuginea testis |
Identifiers | |
Dorlands /Elsevier |
t_22/12831768 |
TA | Lua error in Module:Wikidata at line 744: attempt to index field 'wikibase' (a nil value). |
TH | {{#property:P1694}} |
TE | {{#property:P1693}} |
FMA | {{#property:P1402}} |
Anatomical terminology
[[[d:Lua error in Module:Wikidata at line 863: attempt to index field 'wikibase' (a nil value).|edit on Wikidata]]]
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The tunica albuginea (/ˈtuːnɪkə ˌælbəˈdʒɪniːə/ US dict: tōō'·nĭ·kə ăl'·bə·jĭn'·ē·ə) is the fibrous covering of the testis.
It is a dense blue-grey membrane, composed of bundles of white fibrous tissue which interlace in every direction.
It is covered by the tunica vaginalis, except at the points of attachment of the epididymis to the testis, and along its posterior border, where the spermatic vessels enter the gland.
It is applied to the tunica vasculosa over the glandular substance of the testis, and, at its posterior border, is reflected into the interior of the gland, forming an incomplete vertical septum, called the mediastinum testis (corpus Highmori).
Additional images
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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)
External links
- Anatomy photo:36:11-0102 at the SUNY Downstate Medical Center - "Inguinal Region, Scrotum and Testes: The Cross-Section of the Testis"
- inguinalregion at The Anatomy Lesson by Wesley Norman (Georgetown University) (testes)
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