Superior thoracic artery

{{Infobox artery

| Name = Superior thoracic artery

| Latin = arteria thoracica superior

| Image = Axillary_branches.PNG

| Caption = The axillary artery and its branches (superior throracic artery is the upper-rightmost artery)

| Image2 =

| Caption2 =

| BranchFrom = Axillary artery

| BranchTo = Anastomoses with intercostal arteries and/or internal thoracic artery

| Vein =

| Supplies =Serratus anterior

}}

The superior thoracic artery (highest thoracic artery) is a small artery{{Cite book |last=Standring |first=Susan |url=https://www.worldcat.org/oclc/1201341621 |title=Gray's Anatomy: The Anatomical Basis of Clinical Practice |year=2020 |isbn=978-0-7020-7707-4 |edition=42nd |location=New York |pages=921 |oclc=1201341621}} located near the armpit.{{Citation |last=Shahoud |first=James S. |title=Anatomy, Thorax, Internal Mammary (Internal Thoracic) Arteries |date=2024 |work=StatPearls |url=https://pubmed.ncbi.nlm.nih.gov/30726022/ |access-date=2024-08-26 |place=Treasure Island (FL) |publisher=StatPearls Publishing |pmid=30726022 |last2=Kerndt |first2=Connor C. |last3=Burns |first3=Bracken}} It usually originates from (the first division of) the axillary artery, but can instead originate from the thoracoacromial artery (itself a branch of the second division of the axillary artery). It supplies the pectoralis minor and major muscles, and the chest wall.