Summary
The vascular microarchitecture of the human testis and excurrent duct system was examined by use of a casting method combined with scanning electron microscopy. In the testicular parenchyma, the capillaries form a fine plexus around the seminiferous tubules. The commonly described rope-ladder-like pattern of the peritubular capillaries is absent in the human testis. The microvasculature of the rete testis consists of a poorly organized plexus. Throughout the epididymis including the ductuli efferentes, the peritubular capillary network encircles each tubule cylindrically. In the cauda epididymidis, a coarse venous network surrounds the capillary network externally. Small arteries of the epididymis not only penetrate the connective tissue septa, but also run along the surface. In the ductus deferens, three distinct microvascular systems are distinguished: (1) a venous network located in the connective tissue surrounding the muscular coat, (2) a microvascular plexus within the muscular coat, and (3) a peritubular capillary network. The plexus within the muscular coat interconnects the venous and the peritubular capillary networks.
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References
Abe K, Takano H, Ito T (1984) Microvasculature of the mouse epididymis, with special reference to fenestrated capillaries localized in the initial segment. Anat Rec 209:209–218
Baumgarten HG, Holstein AF, Rosengren E (1971) Arrangement, ultrastructure, and adrenergic innervation of smooth musculature of the ductuli efferentes, ductus epididymidis and ductus deferens of man. Z Zellforsch Mikrosk Anat 120:37–79
Benoit J (1926) Recherches anatomiques, cytologiques et histophysiologiques, sur les voies excrétrices du testicule, chez les mammifères. Arch Anat Histol Embryol 5:173–412
Bloom M, Fawcett DW (1975) A textbook of histology. 10th Ed. Saunders, Philadelphia
Clermont Y, Huckins C (1961) Microscopic anatomy of the sex cords and seminiferous tubules in growing and adult male albino rats. Am J Anat 108:79–97
Fawcett DW, Neaves WB, Flores MN (1973) Comparative observations on intertubular lymphatics and the organization of the interstitial tissue of the mammalian testis. Biol Reprod 9:500–532
Glover TD, Nicander L (1971) Some aspects of structure and function in the mammalian epididymis. J Reprod Fert [Suppl] 13:39–50
Hees H, Leiser R, Kohler T, Wrobel KH (1984) Vascular morphology of the bovine spermatic cord and testis. I. Light and scanning electron-microscopic studies on the testicular artery and pampiniform plexus. Cell Tissue Res 237:31–38
Holstein AF (1969) Morphologische Studien am Nebenhoden des Menschen. In: Bargmann W, Doerr W (Hrsg) Zwanglose Abhandlungen aus dem Gebiet der normalen und pathologischen Anatomie. Heft 20, Thieme, Stuttgart
Hundeiker M, Berger H (1967) Zur Kenntnis der Gefäßarchitektur im Nebenhoden. Arch Klin Exp Dermatol 227:1038–1044
Hundeiker M, Keller L (1963) Die Gefäßarchitektur des menschlichen Hodens. Morphol Jb 105:26–73
Kormano M (1967) An angiographic study of the testicular vasculature in the postnatal rat. Z Anat Entwicklungsgesch 126:138–153
Kormano M (1968) Microvascular structure of the rat epididymis. Ann Med Exp Fenn 46:113–118
Kormano M, Reijonen K (1976) Microvascular structure of the human epididymis. Am J Anat 145:23–32
Kormano M, Suoranta H (1971 a) An angiographic study of the arterial pattern of the human testis. Anat Anz 128:69–76
Kormano M, Suoranta H (1971 b) Microvascular organization of the adult human testis. Anat Rec 170:31–40
Laux W (1944) Über die funktionelle Bedeutung der unterschiedlichen Gefäßversorgung von Hoden und Nebenhoden des Menschen. Z Anat Entwicklungsgesch 113:267–280
Müller I (1957) Kanälchen- und Capillararchitektonik des Rattenhodens. Z Zellforsch 45:522–537
Murakami T (1971) Application of the scanning electron microscope to the study of the fine distribution of the blood vessels. Arch Histol Jpn 32:445–454
Ohtani O, Kikuta A, Ohtsuka A, Taguchi T, Murakami T (1983) Microvasculature as studied by the microvascular corrosion casting/scanning electron microscope method. I. Endocrine and digestive system. Arch Histol Jpn 46:1–42
Roosen-Runge EC, Holstein AF (1978) The human rete testis. Cell Tissue Res 189:409–433
Setchell BP (1970) Vascular supply and drainage of the testis. In: Johnson AD, Gomes WR, Vandenmark NL (eds) The Testis. Acad Press, New York, Vol 1, pp 101–239
Setchell BP, Waites GMH, Till AR (1964) Variation in flow of blood within the epididymis and testis of the sheep and rat. Nature 203:317–318
Suzuki F (1982) Microvasculature of the mouse testis and excurrent duct system. Am J Anat 163:309–325
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Suzuki, F., Nagano, T. Microvasculature of the human testis and excurrent duct system. Cell Tissue Res. 243, 79–89 (1986). https://doi.org/10.1007/BF00221855
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DOI: https://doi.org/10.1007/BF00221855