Triangle of auscultation
Triangle of Auscultation
The Triangle of Auscultation (pronunciation: /ˌɔːskʌlˈteɪʃən/), is a relatively thin, triangular area on the back, where the lung sounds can be heard most clearly with a stethoscope.
Etymology
The term "auscultation" is derived from the Latin word "auscultare", which means "to listen". The term "triangle" is derived from the Greek word "triangulum", which means "three-cornered".
Anatomy
The Triangle of Auscultation is bordered by the Latissimus Dorsi muscle laterally, the Trapezius muscle medially, and the Inferior Scapular Angle inferiorly. The floor of the triangle is formed by the posterior chest wall and the lung's pleural surface.
Clinical Significance
The Triangle of Auscultation is an important area for auscultation in clinical practice. Due to the thinness of the muscles in this area, lung sounds, such as breath sounds and adventitious sounds, can be heard more clearly. This area is particularly useful in the detection of pneumonia, pulmonary edema, and other lung diseases.
Related Terms
- Auscultation: The act of listening to body sounds, usually with a stethoscope.
- Latissimus Dorsi: A large, flat muscle on the back.
- Trapezius: A large muscle that extends down the back of the neck and upper spine.
- Inferior Scapular Angle: The lowest part of the scapula (shoulder blade).
- Pleura: The thin serous membrane around the lungs and inner walls of the chest.
- Pneumonia: An inflammatory condition of the lung.
- Pulmonary Edema: A condition caused by excess fluid in the lungs.
External links
- Medical encyclopedia article on Triangle of auscultation
- Wikipedia's article - Triangle of auscultation
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