spiral artery
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spi·ral ar·ter·y
one of the corkscrewlike arteries in premenstrual or progestational endometrium.
Synonym(s): coiled artery of the uterus
Farlex Partner Medical Dictionary © Farlex 2012
spiral artery
The coiled terminal branch of a uterine artery. It supplies the superficial two thirds of the endometrium, and, in a pregnant uterus, it empties into intervillous spaces, supplying blood that bathes the chorionic villi at the placental site.
Synonym: coiled arterySee also: artery
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