thoracoacromial artery ( acromiothoracic artery; thoracic axis) is a short trunk, which arises from the forepart of the axillary artery, its origin being generally overlapped by the upper edge of the Pectoralis minor.
Branches [ edit ]
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.
Pectoral branch Descends between the two
Pectorales, and is distributed to them and to the mamma, anastomosing with the intercostal branches of the internal thoracic artery and with the lateral thoracic.
Acromial branch Runs laterally over the
coracoid process and under the Deltoideus, to which it gives branches; it then pierces that muscle and ends on the acromion in an arterial network formed by branches from the transverse scapular (a.k.a. suprascapular), thoracoacromial, and posterior humeral circumflex arteries.
Clavicular branch Runs upward and medialward to the
sternoclavicular joint, supplying this articulation, and the Subclavius.
Deltoid ( humeral) branch Often arising with the acromial, it crosses over the
Pectoralis minor and passes in the same groove as the cephalic vein, between the Pectoralis major and Deltoideus, and gives branches to both muscles.
Mnemonic [ edit ]
Mnemonics used to remember the four branches are:
Cadavers Are Dead People" or " ABCD" where Breast (pectoral). [1 ] "
All Dogs Can Pee" or " ADCP" where P (pectoral). [2 ] "
CAlifornia Police Department" or " CAPD" "packed" or "
All People Can Dougie"
Additional images [ edit ]
The axillary artery and its branches.
References [ edit ]
External links [ edit ]
This article incorporates text from a public domain edition of Gray's Anatomy .