human_reference_atlas part of has part blood vessel endothelial cell Homo sapiens uterine artery helicine branch of uterine artery helicine arteriole helicine artery of uterus arcuate artery of uterus spiral arteries AS spiral artery FMA:21101 uberon arcuate artery of uterus Notes: The straight branches of the radial arteries of the uterus terminate in capillaries in the basal layer, while the spiral or coiled branches penetrate to the surface epithelium The helicine branches of uterine artery (or helicine arterioles, or spiral arteries) are small arteries which temporarily supply the endometrium of the uterus during the luteal phase of the menstrual cycle. In histology, identifying the presence of these arteries is one of the most useful techniques in identifying the phase of the cycle. UBERON:0015173 rami helicini uterinae arcuate artery of uterus Wikipedia:Helicine_branches_of_uterine_artery helicine artery central anterior body of uterus central anterior fundus of uterus central anterior lower uterine segment central posterior body of uterus central posterior fundus of uterus central posterior lower uterine segment left anterior body of uterus left anterior fundus of uterus left anterior lower uterine segment left posterior body of uterus left posterior fundus of uterus left posterior lower uterine segment right anterior body of uterus right anterior fundus of uterus right anterior lower uterine segment right posterior body of uterus right posterior fundus of uterus right posterior lower uterine segment