An artificial device for stimulating the heart muscle and regulating its contractions.

A noticeably rapid, strong, or irregular heartbeat.

A doctor who specializes in pathology and chiefly practices in the laboratory as a consultant to clinical colleagues.

A family tree diagram that shows how a particular genetic trait or disease has been inherited.

The membrane enclosing the heart, consisting of an outer fibrous layer and an inner double layer of serous membrane.

Fluid that leaks into the tissues of the extremities causing swelling.

The physical characteristics of an organism or the presence of a disease that may or may not be genetic.

A condition in which a person experiences excessive sweating in the hand, feet and armpit area of the body even when the temperature is cool or when they are at rest.

A large molecule composed of one or more chains of amino acids in a specific order; the order is determined by the base sequence of nucleotides in the gene that codes for the protein. Proteins are required for the structure, function, and regulation of the body's cells, tissues, and organs; and each protein has unique functions. Examples are hormones, enzymes, and antibodies.

A group of drugs that reduce the secretion of gastric (stomach) acid. Commonly prescribed proton pump inhibitors include: lansoprazole (Prevacid), omeprazole (Prilosec), rabeprazole (AcipHex), pantoprazole (Protonix), esomeprazole (Nexium)

A semilunar valve between the right ventricle and the pulmonary artery; prevents blood from flowing from the artery back into the heart.

A vein carrying oxygenated blood from the lungs to the left atrium of the heart.

A doctor who diagnoses and treats respiratory, airway, lung diseases

A device, usually attached to the earlobe or fingertip, that measures the oxygen saturation of arterial blood.