Triangle
Triangle (medical)
Triangle (pronounced: /ˈtraɪæŋɡəl/) is a term used in various medical contexts to describe anatomical regions or structures that have a triangular shape. The term is derived from the Latin word 'triangulum', which means 'three-cornered'.
Anatomy
In anatomy, several structures are referred to as triangles due to their triangular shape. Some of these include:
- Anterior triangle of the neck: This is a region of the neck bounded by the sternocleidomastoid muscle, the midline of the neck, and the lower border of the mandible.
- Posterior triangle of the neck: This is a region of the neck bounded by the sternocleidomastoid muscle, the trapezius muscle, and the clavicle.
- Femoral triangle: This is a region of the upper thigh bounded by the inguinal ligament, the sartorius muscle, and the adductor longus muscle.
Pathology
In pathology, the term triangle is used to describe certain areas of the body where specific diseases or conditions are more likely to occur. For example:
- Triangle of Calot: This is an anatomical space in the right upper quadrant of the abdomen, where gallstones can get lodged, leading to cholecystitis.
Related Terms
- Triangle of auscultation: An area on the back where the lung sounds can be best heard with a stethoscope.
- Triangle of Petit: An anatomical region in the lower back, which is a potential site for hernias.
- Triangle of Hesselbach: An area in the lower abdomen, which is a common site for direct inguinal hernias.
External links
- Medical encyclopedia article on Triangle
- Wikipedia's article - Triangle
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