posterior intercostal arteries 3-11

pos·te·ri·or in·ter·cos·tal ar·ter·ies 3-11

[TA] nine pairs of arteries arising from the thoracic aorta and distributed to the nine lower intercostal spaces, vertebral column, spinal cord, and muscles and integument of the back; they anastomose with branches of the musculophrenic, internal thoracic, superior epigastric, subcostal and lumbar. Synonym(s): arteriae intercostales posteriores [TA], arteriae intercostales posteriores III-XI

pos·te·ri·or in·ter·cos·tal ar·te·ries 3-11

(pos-tēr'ē-ŏr in'tĕr-kos'tăl ahr'tĕr-ēz) [TA] One of nine pairs of arteries arising from the thoracic aorta and distributed to the nine lower intercostal spaces, vertebral column, spinal cord, and muscles and integument of the back; they anastomose with branches of the musculophrenic, internal thoracic, superior epigastric, subcostal, and lumbar.
Synonym(s): arteriae intercostales posteriores III-XI.