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 (superiorly)
* Lateral border of
Pectoralis Major (medially)
* Medial border of
Deltoid muscle
The deltoid muscle is the muscle forming the rounded contour of the human shoulder. It is also known as the 'common shoulder muscle', particularly in other animals such as the domestic cat. Anatomically, the deltoid muscle appears to be made up o ...
(laterally)
It contains the
cephalic vein
In human anatomy, the cephalic vein is a superficial vein in the arm. It originates from the radial end of the dorsal venous network of hand, and ascends along the radial (lateral) side of the arm before emptying into the axillary vein. At the e ...
, 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
The thoracoacromial artery (acromiothoracic artery; thoracic axis) is a short trunk that arises from the second part of the axillary artery, its origin being generally overlapped by the upper edge of the pectoralis minor.
Structure
Projecting for ...
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
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
*
Deltopectoral groove
The deltopectoral groove is an indentation in the muscular structure between the deltoid muscle and pectoralis major.
It is the location through which the cephalic vein passes and where the coracoid process
The coracoid process (from Greek κ� ...
References
External links
* - "Pectoral Region: Deltopectoral Triangle"
{{DEFAULTSORT:Clavipectoral Triangle
Upper limb anatomy