The microvascular architecture of the adult human testis was studied from autopsy material using microangiography. The intratesticular arterial vessels show peculiar coiling independent of the age of the subject. These arteries run in either a centripetal or a centrifugal direction and give rise to inter‐tubular and peritubular capillary networks which are basically similar to those of the rodent testis. Venous drainage is directed either towards the surface of the testis or towards the rete testis. Some capillaries in the vicinity of the seminiferous tubules penetrate some of the layers of the tunica propria. The rete testis has a completely different and rather sparse microvascular architecture, and both the rete and the tunica albuginea receive blood from extratesticular sources as well as from the testis.
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Kormano et al. (1971) studied this question.
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