Spiral aery is a branch of: (A) Uterine aery, (B) Arcuate aery, (C) Vesical aery, (D) Ovarian aery
Answer is B. Spiral aery are small aeries which temporarly supply blood to endometrium of the uterus during the leteal phase of the menstrual cycle.The spiral aries are conveed for uteroplacental blood flow during pregnancy. imageRef - Semantischolar.org