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:
The principles and practice of medicine - John D. Stobo 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.
ICSI - Institute for Clinical Systems Improvement 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]
DailyMed DailyMed provides high quality information about marketed drugs. Drug labeling on this Web site is the most recent submitted to the Food and Drug Administration (FDA) and currently in use; it may include, for example, strengthened warnings undergoing FDA review or minor editorial changes. These labels have been reformatted to make them easier to read. About DailyMed DailyMed provides high quality information about marketed drugs. Drug labeling and other information in the SPL is what has been most recently submitted by drug companies to the Food and Drug Administration (FDA) as drug listing information (See 21 CFR part 207). Other information about drugs may also be available.
BMJ Group – company profile, products, news, jobs and contacts MedMatters - Expert Medical Literature Research for Attorneys Researching Medical Literature on the Internet -- 2005 Update Gloria Miccioli has been a law librarian for 23 years. Her specialty is research. She has worked as Government Documents/Reference Librarian at the Jacob Burns Law Library of the George Washington University Law School; as Senior Research Librarian for Williams & Connolly; and is currently International Librarian for Jones DayD.C. office, where she provides expert research services for the firm's overseas offices. The proliferation of medical websites is good news for the researcher with a small to non-existent medical collection. With so many medical web sites to search, how does a researcher know which to choose? MEDLINE can be searched from two National Library of Medicine websites, PubMed and NLM Gateway . PubMed was developed by the National Center for Biotechnology Information (NCBI) at the National Library of Medicine in conjunction with publishers of medical literature. A wonderful trend in medical literature is the growing availability of full text information. TOXLINE Special
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