spiral arteries

spiral arteries
spiral endometrial arteries tightly coiled branches of the uterine radial arteries, which supply the endometrium and in pregnancy supply blood to the intervillous space. During the secretory phase of the menstrual cycle they become more prominent; if pregnancy does not occur, they become constricted, with consequent necrosis of the endometrial tissues that results in menstruation.

Medical dictionary. 2011.

Игры ⚽ Нужно сделать НИР?

Look at other dictionaries:

  • Endometrial arteries — are those arteries that enter the intervillous space on the maternal side of the placenta within the uterus. They are also known as spiral arteries. They supply nutrition and oxygen to the fetus via the placenta …   Wikipedia

  • radial arteries of uterus — branches of the uterine arcuate arteries that supply the deeper layers of the myometrium and penetrate the endometrium, giving rise to the spiral arteries …   Medical dictionary

  • Middle suprarenal arteries — Artery: Middle suprarenal arteries Posterior abdominal wall, after removal of the peritoneum, showing kidneys, suprarenal capsules, and great vessels. (Middle suprarenal artery visible but not labeled.) Latin arteria suprarenalis media …   Wikipedia

  • Placenta — For the ancient Roman bread, see placenta (food). For the placenta of fruit, see placentation. Placenta Placenta Precursor …   Wikipedia

  • Helicine branches of uterine artery — Infobox Artery Name = PAGENAME Latin = rami helicini arteriae uterinae GraySubject = 155 GrayPage = 615 Caption = Vessels of the uterus and its appendages, rear view. (Helicine branches labeled at center top.) Caption2 = BranchFrom = uterine… …   Wikipedia

  • Endometrium — Infobox Anatomy Name = Endometrium Latin = tunica mucosa uteri GraySubject = 268 GrayPage = 1262 Caption = Uterus and uterine tubes. (Endometrium labeled at center right.) Caption2 = Opened uterus with cat fetus in midgestation: 1 umbilicus, 2… …   Wikipedia

  • Pre-eclampsia — ICD9 = ICD9|642.4 ICD9|642.7 ICDO = Caption = OMIM = OMIM mult = MedlinePlus = 000898 eMedicineSubj = med eMedicineTopic = 1905 | eMedicine mult = eMedicine2|ped|1885 one of the studies investigating the diminished incidence of pre eclampsia… …   Wikipedia

  • Trophoblast — Blastocyst with an inner cell mass and trophoblast …   Wikipedia

  • Pré-éclampsie — La pré éclampsie (appelée aussi toxémie gravidique) est une hypertension artérielle gravidique (HTA) qui apparaît dans la deuxième moitié de la grossesse. Elle est caractérisée par une pression systolique supérieure à 140 mmHg ou une… …   Wikipédia en Français

  • Menstrual cycle — The monthly cycle of changes in the ovaries and the lining of the uterus (endometrium), starting with the preparation of an egg for fertilization. When the follicle of the prepared egg in the ovary breaks, it is released for fertilization and… …   Medical dictionary

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”