Thoracoacromial artery

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Thoracoacromial artery 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.

Origin and Course[edit | edit source]

The thoracoacromial artery arises from the second part of the axillary artery. It passes forward, underneath the pectoralis minor, and divides into several branches. These branches include the pectoral, acromial, clavicular, and deltoid branches.

Branches[edit | edit source]

The thoracoacromial artery gives off several branches, which are named according to the areas they supply:

  • Pectoral branch: This branch supplies the pectoralis major and pectoralis minor muscles.
  • Acromial branch: This branch supplies the acromion, a part of the scapula that forms the highest point of the shoulder.
  • Clavicular branch: This branch supplies the clavicle, also known as the collarbone.
  • Deltoid branch: This branch supplies the deltoid muscle, a large, triangular muscle covering the joint of the shoulder.

Clinical Significance[edit | edit source]

The thoracoacromial artery is an important artery in the upper body, supplying blood to several major muscles and bones. Damage to this artery can lead to significant blood loss and potentially life-threatening complications. It is also a key landmark in surgical procedures involving the shoulder and upper chest.

See Also[edit | edit source]

References[edit | edit source]


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Contributors: Prab R. Tumpati, MD