Midclavicular line
Midclavicular Line
The Midclavicular Line (pronunciation: mid-klav-ik-yuh-lur line) is a vertical line used as a reference point in physical examination and chest radiology.
Etymology
The term is derived from the Latin words 'medius' meaning middle, and 'clavicula' meaning little key, referring to the clavicle bone.
Definition
The Midclavicular Line is an imaginary vertical line running down the body, passing through the midpoint of the clavicle (collarbone). It is used in medical examinations to locate anatomical structures within the thoracic cavity, such as the heart and lungs.
Related Terms
- Anterior Axillary Line: Another vertical line used as a reference point, running down from the anterior axillary fold.
- Posterior Axillary Line: A vertical line running down from the posterior axillary fold.
- Midaxillary Line: A vertical line running down from the apex of the axilla (armpit).
- Midsternal Line: A vertical line running down the middle of the sternum.
Usage
In medical examinations, the Midclavicular Line is used to locate the apex beat of the heart, which is typically found in the fifth intercostal space along this line. It is also used in chest radiology to identify abnormalities in the thoracic cavity.
See Also
External links
- Medical encyclopedia article on Midclavicular line
- Wikipedia's article - Midclavicular line
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