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Theheart.org: trusted cardiology news and opinions

Theheart.org: trusted cardiology news and opinions
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Anatomy of the Human Heart - Texas Heart Institute Heart Information Center Click here for non-Flash version of this illustration of anatomy of the heart. Your heart is located between your lungs in the middle of your chest, behind and slightly to the left of your breastbone (sternum). A double-layered membrane called the pericardium surrounds your heart like a sac. The outer layer of the pericardium surrounds the roots of your heart's major blood vessels and is attached by ligaments to your spinal column, diaphragm, and other parts of your body. The inner layer of the pericardium is attached to the heart muscle. Your heart has 4 chambers. The Heart Valves (illustration) Four types of valves regulate blood flow through your heart: The tricuspid valve regulates blood flow between the right atrium and right ventricle. See also on this site: The Heartbeat The Conduction System (illustration) Electrical impulses from your heart muscle (the myocardium) cause your heart to contract. The Circulatory System (illustration) See also on this site:

L'Auscultation cardiaque - Médecins - LaenneXT - Next Generation Auscultation Le cycle cardiaque Les bruits cardiaques Le fonctionnement cardiaque produit deux bruits particulièrement audibles : le premier bruit (B1) qui marque la systole et le deuxième bruit (B2) qui marque la diastole. B1 pour la systole et B2 pour la diastole Le premier bruit, ou B1, est maximum à la pointe, et assez sourd et grave. En poursuivant leur contraction, les ventricules poussent le flux sanguin à travers les valves aortiques et pulmonaires (valves sigmoïdes). B1 et B2 correspondent chacun à la fermeture de deux valves. Comment distinguer les bruits cardiaques? B1 et B2 se distinguent aisément : entre B1 et B2 se trouve le petit silence qui correspond à la systole ventriculaire ; entre B2 et B1 se trouve le grand silence qui correspond à la diastole ventriculaire. Dans certains cas, chez le sujet jeune ou chez la femme enceinte, on peut entendre un troisième bruit physiologique, ou B3, au début du grand silence. Souffles pathologiques L'intensité du souffle Les points d'auscultations

The principles and practice of medicine - John D. Stobo The Human Heart Your browser does not support JavaScript. <a title='RSS-to-JavaScript.com: Free RSS to JavaScript Converter' href= to read the latest news</a>. From the moment it begins beating until the moment it stops, the human heart works tirelessly. This life-sustaining power has, throughout time, caused an air of mystery to surround the heart. Explore the heart. Soon, your fascination and curiosity may lead to understanding and respect. To learn even more about the heart, try taking a look at some recommended resource materials, enrichment activities, and a brief glossary.

Muscular System Anatomy, Diagram & Function Without muscle, humans could not live. The primary job of muscle is to move the bones of the skeleton, but muscles also enable the heart to beat and constitute the walls of other important hollow organs. There are three types of muscle tissue: Skeletal muscle: This type of muscle creates movement in the body. Muscle movement happens when neurological signals produce electrical changes in muscle cells. Muscle pain is a common issue that can signal numerous problems, even if it’s something as simple as overuse. Muscle pain Sprains and strains Bruising Cramping Myopathy Muscular dystrophy Parkinson’s disease Fibromyalgia Multiple sclerosis Proper nutrition and exercise is important to keeping all muscles healthy, whether they are cardiac, smooth, or skeletal.

056 Clinical implications of high residual platelet reactivity under clopidogrel among tunisian patients with acute coronary syndrome Volume 3, Issue 1, January 2011, Pages 18 XXIes journées européennes de la société française de cardiologie TOPIC 01 – Coronary heart disease 1 Hopital Fattouma Bourguiba, Cardiologie, Monastir, Tunisie2 Hopital Fattouma Bourguiba, Banque du sang, Monastir, Tunisie3 Hopital Farhat Hached, Banque du sang, Sousse, Tunisie4 CHU Tenon, laboratoire d hématologie biologie, Paris, France Available online 6 July 2011 Get rights and content Open Archive Background Unresponsiveness to clopidogrel or aspirin has been reported in patients with acute coronary syndrome (ACS). Objectives We sought to investigate the effect of clopidogrel resistance assessed by the Impact-R device (Cone and platelet analyzer measuring whole blood platelet adhesion under flow conditions) on the incidence of major cardiovascular events (MACE) among tunisian ACS patients in dual antiplatelet therapy. Methods Prospective study included 131 ACS patients almost of them who underwent PCI with stent implantation (76.3%). Results

ICSI - Institute for Clinical Systems Improvement Health Status Health Risk Assessments and Health Calculators Human anatomy "Physiologies" redirects here. For other uses, see Physiology. The study of the human body involves anatomy and physiology. Structure[edit] The human body has several body cavities the largest of which is the abdominopelvic cavity. Composition[edit] The main elements that compose the human body are shown from most abundant to least abundant. The average adult body contains between 5 and 5½ litres of blood and approximately 10 litres of interstitial fluid. The composition of the human body can be referred to in terms of its water content, elements content, tissue types or material types. The vast majority of cells in the human body are not human at all; rather they are of bacteria, archaea, and methanogens such as Methanobrevibacter smithii. The proportions of the elements of the body can be referred to in terms of the main elements, minor ones and trace elements. Human anatomy[edit] Anatomical study by Leonardo da Vinci Anatomical variations[edit] Human physiology[edit] Systems[edit]

Analyse De Vitesse D’Onde Pulsatile (VOP) - QHRV L’onde pulsatile est un phénomène physiologique observable et mesurable dans le système artériel pendant la circulation sanguine. Au cours d’une systole cardiaque, un certain volume sanguin est expulsé. Celui-ci se propage dans les artères grâce à une transformation réciproque entre l’énergie kinésique d’un segment du volume sanguin expulsé et l’énergie potentielle d’un segment étiré de la paroi vasculaire résistante. L’analyse de vitesse d’onde pulsatile est un index classique de la rigidité artérielle et un prédicteur de mortalité cardiovasculaire dans les cas hypertensifs. La VOP aortique est désormais considérée comme indicateur du risque CV, indépendamment du niveau de tension artérielle, mais en conjonction avec le rythme cardiaque. S (point de départ) La valve aortique s’ouvre: le sang du ventricule gauche est expulsé. P (Onde de percussion) L’onde causée par l’éjection du ventricule gauche augmente la paroi artérielle de manière linéaire. Dépistage précoce de 1. l’hypertension

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