
adult zebrafish; drawings and H&E staining structure of the mature testis - tubules
The zebrafish testis is composed of anastomosing seminiferous tubules. In these images, the tubule lumina are highlighted (white) to enhance the testis structure; the masked image




adult zebrafish; H&E staining structure of the mature testis - tubules
Each tubule is bounded by a basement membrane and a connective tissue sheet


Mature sperm is voided into the tubular lumen, which than serves as a storage compartment. The tubular lumen system is conntected to main efferent tubules (ducts

References
- Grier-HJ, Linton-JR, Leatherland-JF, De Vlaming-VL. Structural evidence for two different testicular types in teleost fishes. Am. J. Anat. 159: 331-345; 1980.
- Grier-HJ. Comparative organization of Sertoli cells including the Sertoli cell barrier. In: Russell-LD and Griswold-MD (eds.), The Sertoli Cell: 703-739. Clearwater FL, Cache River Press 1993.