Tetralogy of Fallot Glossary of Terms

The following are health and medical definitions of terms that appear in the Tetralogy of Fallot article.

Abnormal: Outside the expected norm, or uncharacteristic of a particular patient.

Anesthesia: Loss of feeling or awareness, as when an anesthetic is administered before sur...

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Aorta: The largest artery in the body, the aorta arises from the left ventricle of the he...

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Aortic: Pertaining to the aorta, the largest artery in the body.

Arrhythmia: An abnormal heart rhythm.

Artery: A vessel that carries blood high in oxygen content away from the heart to the far...

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Atria: The plural of atrium.

Atrium: An entry chamber. On both sides of the heart, the atrium is the chamber that leads...

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Birth defect: Any defect present in a baby at birth, irrespective of whether the defect is...

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Blalock-Taussig operation: A pioneering operation to treat children born with the heart ma...

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Breathing: The process of respiration, during which air is inhaled into the lungs through ...

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Bypass: An operation in which a new pathway is created for the transport of substances in ...

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Cardiac: Having to do with the heart.

Cardiologist: A physician who specializes in treating heart disorders.

Catheter: A thin, flexible tube.

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Cell: The basic structural and functional unit of any living thing. Each cell is a small c...

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Chest: The area of the body located between the neck and the abdomen. The chest contains t...

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Chest X-ray: A type of X-ray commonly used to detect abnormalities in the lungs. A chest X...

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Chronic: In medicine, lasting a long time. A chronic condition is one that lasts 3 months ...

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Circulation: In medicine, the movement of fluid through the body in a regular or circuitou...

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Circulatory: Having to do with circulation, the movement of fluid in a regular or circuito...

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Circulatory system: The system that moves blood throughout the body. The circulatory syste...

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Congenital: A condition that is present at birth, whether or not it is inherited.

Cyanosis: A bluish color of the skin and the mucous membranes due to insufficient oxygen i...

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Developmental delay: A condition in which a child is behind schedule in reaching milestone...

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Diagnosis: 1 The nature of a disease; the identification of an illness. 2 A ...

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ECG: Electrocardiogram.

Echocardiography: Echocardiography is a diagnostic test which uses ultrasound waves to mak...

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Electrocardiogram: A recording of the electrical activity of the heart. Abbreviated ECG an...

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Emergency department: The department of a hospital responsible for the provision of medica...

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Fatigue: A condition characterized by a lessened capacity for work and reduced efficiency ...

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Fetus: An unborn offspring, from the embryo stage (the end of the eighth week after concep...

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Groin: The area where the thigh meets the hip.

Heart: The muscle that pumps blood received from veins into arteries throughout the body. ...

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Heart block: A blockage in the conduction of the normal electrical impulses in the heart. ...

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Hemoglobin: The oxygen-carrying pigment and predominant protein in the red blood cells. He...

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Hypertrophy: Enlargement or overgrowth of an organ or part of the body due to the increase...

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Hypoxemia: abnormally low levels of oxygen in the blood. Hypoxemia may be mild to severe a...

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Inferior: In anatomy, below or toward the feet. As opposed to superior. The liver is infer...

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Inferior vena cava: A large vein that receives blood from the lower extremities, pelvis an...

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Laboratory: A place for doing tests and research procedures, and for preparing chemicals a...

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Left atrium: The upper right chamber of the heart. The left atrium receives oxygenated blo...

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Left ventricle: The left lower chamber of the heart that receives blood from the left atri...

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Lips: Aside from the lips of the mouth, there are two pairs of lips at the entrance to the...

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Lungs: The lungs are a pair of breathing organs located with the chest which remove carbon...

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Mitral valve: A valve in the heart that is situated between the left atrium and the left v...

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Morphine: A powerful narcotic agent that has strong analgesic (pain relief) action and oth...

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Mortality: Susceptible to death.

Mouth: 1. The upper opening of the digestive tract, beginning with the lips and con...

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Mucous: Pertaining to mucus, a thick fluid produced by the lining of some tissues of the b...

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Muscle: Muscle is the tissue of the body which primarily functions as a source of power. T...

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Nose: The external midline projection from the face. The purpose of the nose is to warm, c...

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Obstruction: Blockage of a passageway. See, for example: Airway obstruction; Intestinal o...

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Operation: In medicine, a surgical procedure. Many operations are named after persons. The...

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Oxygen: The odorless gas that is present in the air and necessary to maintain life. Oxygen...

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Oxygenation: The addition of oxygen to any system, including the human body. Oxygenation m...

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Pacemaker: A system that sends electrical impulses to the heart in order to set the hear...

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Postoperative: After surgery. As opposed to preoperative, before surgery.

Puberty: Adolescence, the period in which the human body first becomes capable of reproduc...

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Pulmonary: Having to do with the lungs.

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Pulmonary artery: One of the two vessels which are formed as terminal branches of the pulm...

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Pulmonary stenosis: A condition in which the pulmonary valve is too tight, so that the flo...

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Pulmonary valve: One of the four valves in the heart, which stands at the opening from the...

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Red blood cell: The blood cell that carries oxygen. Red cells contain hemoglobin and it is...

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Regurgitation: A backward flowing. For example, vomiting is a regurgitation of food from t...

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Residual: Something left behind. With residual disease, the disease has not been eradicate...

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Resistance: Opposition to something, or the ability to withstand something. For example, s...

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Right atrium: The right upper chamber of the heart. The right atrium receives deoxygenated...

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Right ventricle: The lower right chamber of the heart that receives deoxygenated blood fro...

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Septum: A dividing wall or enclosure. For example, the septum of the nose is the thin cart...

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Stenosis: A narrowing. For example, aortic stenosis is a narrowing of the aortic valve in ...

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Subclavian: Under the clavicle (the collar bone), as the subclavian artery or the subclav...

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Superior vena cava: A large vein that receives blood from the head, neck, upper extremitie...

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Surgery: The branch of medicine that employs operations in the treatment of disease or inj...

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Tachycardia: A rapid heart rate, usually defined as greater than 100 beats per minute.

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Tetralogy of Fallot: A combination of four heart defects that are present at birth and acc...

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Tricuspid: Having three flaps or cusps. For example, the aortic valve and the tricuspid va...

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Tricuspid valve: One of the four heart valves, the first one that blood encounters as it e...

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Vena cava: The superior vena cava is the large vein which returns blood to the heart from ...

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Ventricle: A chamber of an organ. For example, the four connected cavities in the central ...

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Ventricles: 1, The right ventricle and the left ventricle, the lower two chambers o...

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Ventricular: Pertaining to the ventricles, the lower chambers of the heart, as in ventricu...

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Ventricular septum: The wall between the two lower chambers (ventricles) of the heart.

Ventricular tachycardia: An abnormal heart rhythm that is rapid and regular and that origi...

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Vessel: A tube in the body that carries fluids. Examples of vessels are blood vessels and ...

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VSD: Ventricular septal defect.

X-ray: High-energy radiation with waves shorter than those of visible light. X-ray is used...

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