Pectoral branch

Thoracoacromial artery
Branches of axillary artery, including thoracoacromial artery
The scapular and circumflex arteries. (Thoracoacromial branch of thoracoacromial labeled at upper right.)
Details
Source	axillary artery
Identifiers
Latin	arteria thoracoacromialis
TA	A12.2.09.005
FMA	22671
Anatomical terminology []

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.

Projecting forward to the upper border of the Pectoralis minor, it pierces the coracoclavicular fascia and divides into four branches—pectoral, acromial, clavicular, and deltoid.

The axillary artery and its branches.

This article incorporates text in the public domain from page 588 of the 20th edition of Gray's Anatomy (1918)