Dictionary

elbow, golfer’s Medial epicondylitis caused by injured tendons from the muscles that attach to the bony prominence in the inner portion of the elbow called the medial epicondyle.

elbow, arthritis of the Inflammation of the elbow joint. Arthritis of the elbow can be due to many systemic forms of arthritis, including rheumatoid arthritis, gouty arthritis, and psoriatic arthritis. Elbow arthritis is associated with signs of warmth, swelling, pain, tenderness, and decreased range of motion.

elbow The juncture of the long bones in the middle portion of the upper extremity. The bone of the arm (humerus) meets both the ulna (the inner bone of the forearm) and radius (the outer bone of the forearm) to form a hinge joint at the elbow. The radius and ulna also meet one another…

EKG Electrocardiogram.

ejection fraction The percentage of blood that is pumped out of a filled ventricle as a result of a heartbeat. The heart does not eject all the blood in the ventricle. Only about two-thirds of the blood is normally pumped out with each beat, and that fraction is referred to as the ejection fraction. The…

ejaculation Ejection of sperm and seminal fluid during an orgasm in a male.

eight-day measles Rubeola (measles). See also measles.

ehrlichiosis An acute tick-borne disease first reported in humans in 1986. Erlichiosis is due to infection by the rickettsia microbe, Ehrlichia canis, which is usually carried by the brown dog tick. Erlichiosis is similar to Rocky Mountain spotted fever, characterized by high fever, headache, malaise, and muscle pain, but without the rash. See also rickettsial…

Ehlers-Danlos syndrome A heritable disorder of connective tissue that is characterized by easy bruising, joint hypermobility (loose joints), skin laxity, and weakness of tissues. Abbreviated EDS. There are a number of different types of EDS, each of which has these characteristic features. The variations of EDS are treated according to their particular manifestations. Skin protection…

egg sac See ovary.

EGG See electrogastrogram.

EGD Esophagogastroduodenoscopy. See endoscopy, upper.