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Medical Dictionary Terms Beginning with E
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Edwards syndrome
Edwards syndrome: This is trisomy 18 syndrome. There are three instead of the normal two chromosomes #18. Children with this condition have multiple malformations and mental retardation due to the extra chromosome #18. The children characteristically hmore detail info...
Effacement
Effacement: The thinning of the cervix which occurs before and while it dilates.more detail info...
Effect, founder
Effect, founder: A population group with an unusual frequency of a gene due to there having been only a small number of original members (&founders&) one or more of whom had that gene. For example, the gene for Huntington disease was introducmore detail info...
Efferent
Efferent: Carrying away. Efferent comes from the Latin &ex’, out, outward, away + &ferre&, to bear = to carry away. An artery is an efferent vessel carrying blood away from the heart. An efferent nerve carries impulses away from themore detail info...
Efferent nerve
Efferent nerve: A nerve that carries impulses away from the central nervous system.more detail info...
Efferent vessel
Efferent vessel: A vessel carrying blood away from the heart. An artery or arteriole.more detail info...
Effusion
Effusion: Too much fluid, an outpouring of fluid. A hemorrhagic effusion is one that has blood within the fluid. A pericardial effusion is an outpouring of fluid within the fibrous sac (the pericardium) that surrounds the heart. The lungs are comore detail info...
Effusion, pericardial
Effusion, pericardial: Too much fluid within the fibrous sac (the pericardium) that surrounds the heart. The inner surface of the pericardium is lined by a layer of flat cells (mesothelial cells) that normally secrete a small amount of fluid whmore detail info...
Effusion, pleural
Effusion, pleural: Outpouring of fluid between the two layers of the pleural membranes that cover the lungs. The term "effusion" comes from the Latin "effusio" meaning a pouring out. A pleural effusion is thus, literally, a pouring out of fluid imore detail info...
EGD (esophagogastroduodenoscopy)
EGD (esophagogastroduodenoscopy): A procedure that enables the examiner (usually a gastroenterologist ) to examine the esophagus ( swallowing tube), stomach, and duodenum ( first portion of small bowel ) using a thin flexible tube (a &scope&)more detail info...
Egg
Egg: Ovum (plural: ova).more detail info...
Ehlers-Danlos syndrome (EDS)
Ehlers-Danlos syndrome (EDS): An inherited disorder with easy bruising, joint hypermobility (loose joints), skin laxity, and weakness of tissues. There are a number of different Ehlers-Danlos syndromes which share these features but can be categmore detail info...
Ehrlichiosis
Ehrlichiosis: An acute (abrupt-onset) disease (first reported in humans in 1986) due to infection by the rickettsial agent, Ehrlichia canis. The brown dog tick, is the common vector (carrier). The disease is similar to Rocky Mountain spotted fever withmore detail info...
Eight-day measles
Eight-day measles: An acute highly contagious viral disease with fever, runny nose, cough, red eyes, and a spreading skin rash. The eight-day measles is the ordinary measles, also known as rubeola, a potentially disastrous disease. Measles maymore detail info...
Eighth cranial nerve
Eighth cranial nerve: The eighth cranial nerve is the vestibulocochlear nerve. The vestibulocochlear nerve is responsible for the sense of hearing and it is also pertinent to balance, to the body position sense. Problems with the vestibulocochlear nemore detail info...
Ejaculation
Ejaculation: Ejection of sperm and seminal fluid.more detail info...
Ejection fraction
Ejection fraction: The portion of blood that is pumped out of a filled ventricle as a result of a heartbeat. The heart does not eject all of the blood that is in the ventricle. Only about two-thirds of the blood is normally pumped out with each beat. Thmore detail info...
Elbow
Elbow: The joint where three long bones meet in the middle portion of the arm. The bone of the upper arm (humerus) meets the inner bone of the forearm (ulna) and the outer bone of the forearm (radius) to form a hinge joint. The radius and ulna also meemore detail info...
Elbow bursitis
Elbow bursitis: At the tip of the elbow (the olecranon area), there is a bursa, a fluid-filled sac that functions as a gliding surface to reduce friction with motion. This bursa is known as the olecranon bursa. Because of its location, the olecranon bumore detail info...
Elbow bursitis, treatment of
Elbow bursitis, treatment of: If non-infectious, elbow bursitis treatment includes rest, ice, and medications for inflammation and pain. Infectious bursitis is treated with antibiotics, aspiration, and surgery.more detail info...