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Vein Art

Anatomy Art

Biology Art

Coloured Art

metal prints vein metal prints anatomy metal prints biology metal prints coloured metal prints sem metal prints anatomical metal prints biological metal prints blood metal prints male metal prints reproduction metal prints scanning electron micrograph metal prints

photographs vein photos anatomy photos biology photos coloured photos sem photos anatomical photos biological photos blood photos male photos reproduction photos scanning electron micrograph photos

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Blood supply to a testis, coloured scanning electron micrograph (SEM). The ideal temperature for the development of sperm cells is slightly lower than body temperature. The circulatory system of testes is adapted to ensure that the testes are kept slightly cooler. Blood arrives at the testis through an artery (red) and leaves through the network of veins (beige). The network covers much of the artery, providing a large surface area for heat exchange. As the venous blood is slightly cooler, this system cools the arriving arterial blood. This is known as counter-current heat exchange. This is a resin cast.

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