Collateral
Collateral (medicine)
Collateral (pronounced: /kəˈlatərəl/) is a term used in various fields of medicine to describe secondary or accessory pathways. The term has its roots in the Latin word "collaterale," which means "together with the side."
In Anatomy
In anatomy, collateral refers to a secondary or accessory part. For example, collateral arteries are smaller vessels that branch off a major artery and can provide alternate routes for blood flow if the main artery becomes blocked. Similarly, collateral veins and nerves also exist.
In Pathology
In pathology, collateral can refer to the body's ability to create new pathways for blood flow or nerve signals when the primary route is blocked or damaged. This is often seen in conditions such as stroke or heart disease.
In Pharmacology
In pharmacology, collateral sensitivity refers to the phenomenon where a cell or organism that has developed resistance to a certain drug becomes more sensitive to another drug.
Related Terms
- Collateral circulation: The alternate circulation in an area of tissue or an organ due to the blockage of the primary source of blood flow.
- Collateral damage: Unintended damage or harm that is incurred due to an attempt to repair or treat a primary issue.
- Collateral ligament: Ligaments located on the sides of the knee and elbow joints, providing stability and limiting side-to-side movement.
See Also
External links
- Medical encyclopedia article on Collateral
- Wikipedia's article - Collateral
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