Triangle of auscultation

Infobox Anatomy
Name = PAGENAME
Latin = trigonum auscultationis
GraySubject = 121
GrayPage = 434

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Caption = Muscles connecting the upper extremity to the vertebral column. (Triangle of auscultation visible but not labeled.)


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DorlandsPre = t_19
DorlandsSuf = 12823351
The triangle of ausculation is situated behind the scapula.

Boundaries

It has the following boundaries:

* above, by the Trapezius
* below, by the Latissimus dorsi
* laterally by the medial margin of the scapula

The floor is partly formed by the Rhomboideus major.

Function

The triangle of auscultation is a space on the back where the relatively thin musculature allows for respiratory sounds to be heard more clearly with a stethoscope.

To better expose the floor of the triangle, which is made up of the posterior thoracic wall in the 6th intercostal space, the patient is asked to fold her arms across her chest, medially rotating the scapulae, while bending forward at the trunk.

External links

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* [http://www.ithaca.edu/faculty/lahr/LE2000/Back/Back_index.htm#triangle Overview and diagram at ithaca.edu]