The superior thoracic artery (highest thoracic artery) is a small vessel normally arising from the first division of the axillary artery, but may arise from the thoracoacromial artery, itself a branch of the second division of the axillary artery.
The superior thoracic artery (highest thoracic artery) is a small artery located near the armpit in humans. It normally arising from the first division of the axillary artery, but may arise from the thoracoacromial artery, itself a branch of the second division of the axillary artery.