spiral artery(redirected from coiled artery of the uterus)
one of the corkscrewlike arteries in premenstrual or progestational endometrium.
Synonym(s): coiled artery of the uterus
See screw 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 artery
See also: artery