Clavipectoral triangle

{{Short description|Anatomical region}}

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{{One source|date=September 2009}}

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{{Infobox anatomy

| Name = Clavipectoral triangle

| Latin = trigonum clavipectorale

| Image = Gray410.png

| Caption = Superficial muscles of the chest and front of the arm.

| Image2 = Gray574.png

| Caption2 = Superficial veins of the upper limb.

| System =

}}

The clavipectoral triangle (also known as the deltopectoral triangle) is an anatomical region found in humans and other animals. It is bordered by the following structures:

  • Clavicle Clinically Oriented Anatomy/Moore p707 (superiorly)
  • Lateral border of Pectoralis MajorClinically Oriented Anatomy/Moore p 707 (medially)
  • Medial border of Deltoid muscle Clinically Oriented Anatomy/Moore p707 (laterally)

It contains the cephalic vein,[http://www.dartmouth.edu/~anatomy/shoulder/surface/surface1.html shoulder/surface/surface1] at the Dartmouth Medical School's Department of Anatomy and deltopectoral fascia, which is a layer of deep fascia that invests the three structures that make up the border of the triangle. The deltoid branch of the thoracoacromial artery also passes through this triangle, giving branches to both the deltoid and pectoralis major muscles.

The subclavian vein and the subclavian artery may be accessed via this triangle, as they are deep to it.

Clinical significance

  • Palpation of coracoid process of scapula{{Cite book|title=Clinically Oriented Anatomy/Moore|pages=707}}

The coracoid process of the scapula is not subcutaneous; It is covered by the anterior border of the deltoid. However, the tip of the coracoid process can be felt on deep palpation on the lateral aspect of the clavipectoral triangle. The coracoid process is used as a bony landmark when performing a brachial plexus block. Position of coracoid process is significant for diagnosing dislocations as well.

See also

References

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