Testicular artery

Arteria testicularis

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What it is
A long, slender artery arising from the aorta just below the renal arteries; it descends on psoas behind the peritoneum, crosses the ureter, and passes through the inguinal canal in the spermatic cord to the testis.
Function
Supplies the testis and epididymis.
Size
~1–2 mm diameter; very long (up to ~30 cm in men).
Clinical note
The gonads develop high in the abdomen next to the kidneys and descend, dragging their arteries with them — hence the high origin from the aorta.