Nocturnal enuresis
Bedwetting at night. From the Greek “enourin” meaning “to urinate in.”
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- Node
Literally a knot, a node is a collection of tissue. For example a lymph node, is a collection of lymphoid tissue. A nodule is a small node, a little collection of tissue.
- Node, atrioventricular
The electrical relay station between the upper and lower chambers of the heart. Abbreviated AV node. Electrical signals from the atria must pass through the AV node to reach the ventricles. The AV node, which controls the heart rate, is one of the major elements in the cardiac conduction system. The AV node serves as […]
- Node, AV
The AV node (AV stands for atrioventricular) is an electrical relay station between the atria (the upper) and the ventricles (the lower chambers of the heart). Electrical signals from the atria must pass through the AV node to reach the ventricles. The AV node is one of the major elements in the cardiac conduction system, […]
- Node, Heberden
A small fixed bump on the finger, usually at the last joint of the finger, Heberden’s node is a calcified spur of the joint (articular) cartilage and is a sign of osteoarthritis. Named for the English physician William Heberden (1710-1801) who made a number of celebrated medical discoveries (including angina).
- Node, SA
The SA node (SA stands for sinoatrial) is one of the major elements in the cardiac conduction system, the system that controls the heart rate. This stunningly designed system generates electrical impulses and conducts them throughout the muscle of the heart, stimulating the heart to contract and pump blood. The SA node is the heart’s […]