This page includes the following topics and synonyms: Fetal Circulation, Fetoplacental French, Circulation foetoplacentaire, Circulation foeto- placentaire. V. PLACENTAL CIRCULATION CIRCULATION PLACENTAIRE B.L. artery ligation in the guinea-pig Flux sanguin foeto-placentaire apres ligature de. De la circulation foeto-placentaire après la délivrance immédiate on Amazon. com. *FREE* shipping on qualifying offers.

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In the endothelium, as in the smooth muscle of the placental vessels, control of production and mechanisms of action of the signal modulators of placental tone – endothelin 1, nitric oxide, prostanoids, etc. Via the spiral arteries 80 mm Hg that come from the uterine arteries Aa.

Fetal Circulation

In the intervillous spaces the pressure falls to only 10 mm Hg. In the villus interior there are mesenchymal cells with macrophages and fetal capillaries. Search other sites for ‘Fetal Circulation’. La technique est relativement beaucoup de temps environ 30 minutes par le placenta.

10.3 Placental blood circulation

At the placental level, it thus finds itself temporarily outside the vessel network. The study of their interactions could contribute to better evaluating the relative importance of each of them in the particular balances which are established at different stages of normal pregnancy, as well as during pathological situations pre-eclampsia, intrauterine growth retardation, etc.

The placental circulation brings into close relationship two circulation systems: The circulation of blood through the fetus, umbilical cord and placenta on the fetal side.


The placental barrier is composed of structures that separate the maternal and the fetal blood. Foet-oplacentaire pressure in the fetal vessels and their villus branches always lies over that of the intervillous space. The development and the reactivity of fetoplacental circulation appear to be extremely well coordinated phenomena which follow a precise chronology and are regulated by numerous angiogenic and vasoactive factors.

Related Topics in Anatomy.

Started inthis collection now contains interlinked topic pages divided into a tree of 31 specialty books and chapters. Contact Help Who are we? Foego-placentaire Bing for all related images. Outline Masquer le plan. You will only be able to see the first 20 seconds. The makeup of the placental barrier changes over the course of the pregnancy.

Murine Heterotopic Heart Transplant Technique. Click here for the english version. Small Bowel Transplantation In Mice.

Fill out the form below to receive a free trial or learn more about access:. List of the chapters Next chapter. Appuyez doucement sur les caillots de sang des vaisseaux circukation et des vaisseaux placentaires.

The other zones of the syncythiothrophoblast lack nuclei and are adjacent to the capillaries exchange zones.

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Heterotopic Cervical Heart Transplantation in Mice. Get cutting-edge science videos from J o VE sent straight to your inbox every month. Birth Transition from Fetal Circulation Alveolar fluid is replaced with air on initial ventilations Critical first step that leads to reduced pulmonary vascular resistance Results in an increase in PaO2 with an associated decreased in pulmonary vascular resistance Negative intrathoracic pressure increases Initiated with uterine contractions and travel through the birth canal First few breaths add to the negative intrathoracic pressure Increased pulmonary perfusion Results from less resistance to flow through pulmonary system than through fetal shunts Increased systemic vascular resistance following delivery Flow reverses in the ductus arteriosus now traveling aorta to pulmonary artery Closure of shunts last steps in transition Ductus arteriosus closes within hours to days unless Patent Ductus Arteriosus Foramen ovale closes last Results from increased left atrial flow and pressure Myocardium changes Right ventricle wall thins Left ventricle wall hypertrophies.


The blood in the intervillous space is exchanged times per minute. Spiral arteries Uterine veins Intervillous spaces Basal plate. Related Bing Images Extra: Your institution must subscribe to JoVE’s Medicine section to access this content.

The supply of blood to the placenta is influenced by various factors, especially by the arterial blood pressure, uterine contractions, tobacco abuse, medications and hormones.

Fetal blood comes via the two Aa. An unexpected error occurred. In the 5th month the fetal vessels have multiplied their branches and gotten closer to the villus surface. Patients should address specific medical concerns with their physicians. If the problem continues, please let us know and we’ll try to help. Back Links pages that link to this page. Neonatology – Anatomy Pages. Heterotopic Heart Transplantation in Mice. Umbilical arteries Umbilical vein Fetal capillaries.