Zebra
‘When you hear hoof beats, think of horses, not zebras.’ For example, when someone develops a mild transient cough, a virus infection is the most logical and likely cause, and tuberculosis is a zebra.
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- ZAP-70
Zeta-chain-associated protein kinase 70. A member of the protein tyrosine kinase family, ZAP-70 is normally expressed in T cells and natural killer cells and has a critical role in the initiation of T-cell signaling. ZAP-70 is expressed in T cells and tumors of T-cell lineage. A high level of ZAP-70 expression appears restricted to T-cell […]
- Z chromosome
A sex chromosome in certain animals, such as chickens, turkeys, and moths. In humans, males are XY and females XX, but in animals with a Z chromosome, males are ZZ and females are WZ.
- Serratus
Serratus anterior; Serratus magnus; Serratus posterior inferior; Serratus posterior superior.
- Chest cold
Chest cold: : A nonmedical term used to refer to symptoms often accompanying a viral infection that involves the chest. Chest colds can lead to cough (a cough that causes sputum production). These symptoms are actually characteristic of bronchitis (inflammation of the airways to the lungs with increased mucus production), and the term “chest cold” […]