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Coronavirus
CoronavirusOne of a group of RNA viruses, so named because they look like a corona or halo when viewed under the electron microscope. The corona or halo is due to an array of surface projections on the viral envelope. RELATED TERMS-------------------------------------- Microscope A microscope (Greek: micron = small and scopos = aim) is an instrument for viewing objects that are too small to be seen by the naked or unaided eye. The science of investigating small objects using such an instrument is called microscopy, and the term microscopic means minute or very small, not easily visible with the unaided eye. In other words, requiring a microscope to examine. SIMILAR TERMS-------------------------------------- Corona Regional Medical Center The Corona Regional Medical Center is a hospital in Corona, California, United States. Coronal A coronal plane through the body is a vertical plane from head to foot and parallel to the shoulders. Coronary angiography "The most accurate method (the ""gold standard"") for evaluating and defining coronary artery disease (CAD). Coronary angiography is used to identify the exact location and severity of CAD. " Coronary Angiography (Cardiac Catheterization) A procedure that allows picture to be taken of the arteries supplying the heart with blood (the coronary arteries). Angiography shows blockages in the arteries. Coronary arteries Two arteries that come from the aorta to provide blood to the heart muscle. Coronary Arteries Network of blood vessels that branch off the aorta to supply the heart muscle with oxygen-rich blood. There are two main coronary arteries: the right and the left. The left splits into two arteries called the circumflex and the left anterior descending (LAD) arteries, thus, the heart is often considered to have three major coronary arteries. Coronary artery brachytherapy Local radiation treatment within an artery to the heart. Coronary artery brachytherapy has been used to reduce the recurrence of blockage (obstruction) of a coronary artery after successful treatment of a blockage of a stent. A stent is a tubular structure that is implanted inside of a coronary artery to keep it open, thereby preventing a heart attack. Coronary artery bypass graft Abbreviated CABG. A form of bypass surgery that can create new routes around narrowed and blocked coronary arteries, permitting increased blood flow to deliver oxygen and nutrients to the heart muscle. CABG is an option for selected groups of patients with significant narrowings and blockages of the heart arteries. The bypass graft for a CABG can be a vein from the leg or an inner chest-wall artery. CABG surgery is one of the most commonly performed major operations. Coronary artery disease develops because of hardening of the arteries (atherosclerosis) that supply blood to the heart muscle. Diagnostic tests prior to (and after) CABG include the electrocardiogram (EKG), stress test, echocardiogram, and coronary angiography. Coronary artery bypass graft (CAB or CABG) A surgical procedure in which a healthy blood vessel is transplanted from another part of the body into the heart to replace or bypass a diseased vessel. Coronary artery disease A major cause of illness and death, coronary artery disease (CAD) begins when hard cholesterol substances (plaques) are deposited within a coronary artery. Coronary Artery Disease (atherosclerosis) A build-up of fatty material in the wall of the coronary artery that causes narrowing of the artery. Coronary artery spasm A sudden closing of an artery, which cuts off blood flow to the heart and causes symptom of angina or heart attack. Coronary bypass A bypass of a plaque within a coronary artery using part of a vein as a graft. Coronary Disease Damage to the heart. Not enough blood flows through the vessels because they are blocked with fat or have become thick and hard; this harms the muscles of the heart. People with diabetes are at a higher risk of coronary disease. Coronary heart disease A condition in which the coronary arteries narrow from an accumulation of plaque (atherosclerosis) and cause a decrease in blood flow. Coronary insufficiency Insufficient blood flow through one or more coronary arteries. Coronary occlusion An obstruction of one of the coronary arteries that decreases flow to the heart muscle. Coronary Spasm During coronary spasm, the coronary arteries restrict or spasm on and off, causing lack of blood supply to the heart muscle. It may occur at rest and can even occur in people without significant coronary artery disease. Coronary thrombosis Thrombosis is the formation of a clot or thrombus inside a blood vessel, obstructing the flow of blood through the circulatory system. Thromboembolism is a general term describing both thrombosis and its main complication: dislodgement of a clot and embolisation. Coronary thrombosis The formation of a clot in one of the arteries that carry blood to the heart muscle. Coronation Hospital and Care Centre The Coronation Hospital and Care Centre is a hospital in Oyen, Alberta, Canada. PREVIOUS AND NEXT TERMS-------------------------------------- Coronary artery brachytherapy Local radiation treatment within an artery to the heart. Coronary artery brachytherapy has been used to reduce the recurrence of blockage (obstruction) of a coronary artery after successful treatment of a blockage of a stent. A stent is a tubular structure that is implanted inside of a coronary artery to keep it open, thereby preventing a heart attack. Coronary artery bypass graft Abbreviated CABG. A form of bypass surgery that can create new routes around narrowed and blocked coronary arteries, permitting increased blood flow to deliver oxygen and nutrients to the heart muscle. CABG is an option for selected groups of patients with significant narrowings and blockages of the heart arteries. The bypass graft for a CABG can be a vein from the leg or an inner chest-wall artery. CABG surgery is one of the most commonly performed major operations. Coronary artery disease develops because of hardening of the arteries (atherosclerosis) that supply blood to the heart muscle. Diagnostic tests prior to (and after) CABG include the electrocardiogram (EKG), stress test, echocardiogram, and coronary angiography. Coronary artery disease A major cause of illness and death, coronary artery disease (CAD) begins when hard cholesterol substances (plaques) are deposited within a coronary artery. Coronary bypass A bypass of a plaque within a coronary artery using part of a vein as a graft. Coronary insufficiency Insufficient blood flow through one or more coronary arteries. Coronavirus Corpora cavernosa Two chambers in the penis which run the length of the organ and are filled with spongy tissue. Blood flows in and fills the open spaces in the spongy tissue to create an erection. Corporeal Pertaining to the body of an organ or the entire body. The term also serves as a suffix, as in intracorporeal or extracorporeal. Corpse A dead body. The term corpse is more often used in in mystery stories than in medicine which, for obscure reasons, prefers the term cadaver. Corpus The body of the uterus (womb). Corpus callosotomy The corpus callosum is a band of nerve fibers connecting the two halves (hemispheres) of the brain. A corpus callosotomy is an operation in which all or part of this structure is cut, disabling communication between the hemispheres and preventing the spread of seizures from one side of the brain to the other. This procedure, sometimes called split-brain surgery, is for patients with extreme forms of uncontrollable epilepsy who have intense seizures that can lead to violent falls and potentially serious injury. We thank you for using the Medical Glossary to search for Coronavirus. If you have a better definition for Coronavirus than the one presented here, please let us know by making use of the suggest a term option. This definition of Coronavirus may be disputed by other professionals. Our attempt is to provide easy definitions on Coronavirus and any other medical topic for the public at large.
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