Results 81 to 90 of about 1,383,108 (228)

Spiral Arterial Structures in the Fetal Placenta

open access: yesExperimental Biology and Medicine, 1949
SummaryThe spiral nature of the primary villus stem vessels has been described for the first time. The underlying mechanism suggests a trophic response to steroid hormones, comparable to the effect produced on vessels of the uterus and ovary. This spiral pattern provides a gradient of pressure which may slow fetal circulation through the placenta and ...
openaire   +3 more sources

Double profunda brachii artery

open access: yesBLDE University Journal of Health Sciences, 2016
Brachial artery (BA) is a continuation of the axillary artery at the lower border of teres major. In the cubital fossa, BA divides into radial artery and ulnar artery as terminal branches.
Gavishiddappa A Hadimani   +4 more
doaj   +1 more source

Classification of Pressure Gradient of Human Common Carotid Artery and Ascending Aorta on the Basis of Age and Gender [PDF]

open access: yesInternational Journal of computer Applications, Volume 145, No.1, July 2016, 2017
The current work is done to see which artery has more chance of having cardiovascular diseases by measuring value of pressure gradient in the common carotid artery (CCA) and ascending aorta according to age and gender. Pressure gradient is determined in the CCA and ascending aorta of presumed healthy volunteers, having age between 10 and 60 years.
arxiv   +1 more source

Animal models of fetal growth restriction: Considerations for translational medicine. [PDF]

open access: yes, 2015
Fetal growth restriction (FGR) is the failure of a fetus to reach its full genetic growth potential. It occurs in up to 8% of pregnancies, and after premature birth is the second leading cause of infant mortality and morbidity.
David, AL, Swanson, AM
core   +1 more source

Spiral Vein Graft Technique for Popliteal Artery AneurysmsWhat unique educational message is provided and why is it relevant?

open access: yesEJVES Short Reports, 2019
Introduction: In patients with popliteal artery aneurysm lacking a suitable vein for bypass, prosthetic graft, or endovascular stent graft are alternative treatment options. However, durability is limited.
Gustav Pedersen   +3 more
doaj  

The Relationship between First Trimester Serum Progesterone Levels and Spiral Artery Doppler Findings with Adverse Perinatal Outcomes

open access: yesClinical and Experimental Obstetrics & Gynecology
Background: Progesterone is essential for maintaining pregnancy. Spiral arteries, providing blood flow to the placenta, undergo changes in early pregnancy, reducing uteroplacental resistance.
Ramazan Adan   +3 more
doaj   +1 more source

The role of external broadcasting in a closed political system [PDF]

open access: yes, 2011
This article investigates the role and impact of external broadcasting (radio and television) on a closed political system, through the example of the two post-war German states: the West German Federal Republic of Germany (FRG) and the East German ...
Andreas Scheu   +23 more
core   +2 more sources

Analysis of left ventricular behaviour in diastole by means of finite element method [PDF]

open access: yes, 1979
The human left ventricle in diastole can be modelled as a passive structure with incremental internal pressure change being considered as the load. Recent developments in engineering stress analysis provide techniques for predicting the behaviour of ...
Gibson, DG, Vinson, CA, Yettram, AL
core   +2 more sources

Interleaved spiral cine coronary artery velocity mapping [PDF]

open access: yesMagnetic Resonance in Medicine, 2000
Navigator-echo controlled interleaved spiral cine coronary-artery velocity maps were acquired in eight free-breathing volunteers. Good quality data were achieved in all subjects with phasic flow being clearly demonstrated. The improved efficiency of spiral k-space coverage compared to that of more conventional spin-warp techniques resulted in a mean ...
Peter D. Gatehouse   +3 more
openaire   +3 more sources

Recurrent Chest Pain due to a Huge Left Main Aneurysm: A Case Report

open access: yesJournal of Tehran University Heart Center, 2022
Coronary artery aneurysms (CAAs) are rare, and aneurysms of the left main coronary artery are extremely rare. Atherosclerosis is the main cause of CAAs.
Erfan Kazemi, Hossein Sheibani
doaj   +1 more source

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