The Anterior intercostal branches of internal thoracic artery supply the upper five or six intercostal spaces. The internal thoracic artery then divides into the superior epigastric artery and musculophrenic artery. The latter gives out the remaining anterior intercostal branches.
Two in number in each space, these small vessels pass lateralward, one lying near the lower margin of the rib above, and the other near the upper margin of the rib below, and anastomose with the posterior intercostal arteries from the thoracic aorta.
They are at first situated between the pleura and the Intercostales interni, and then between the Intercostales interni and innermost.
They supply the intercostal muscles and, by branches which perforate the Intercostales externi, the Pectoral muscles and the mamma.
Other articles related to "branches":
... Conservative Future branches can vary in structure ... It has branches at most British universities, though notably not at Cambridge University, but also has a number of branches affiliated with city and town associations ... These branches aim to attract members from the non-student population ...
... Branches in Bond Street (where Fenwick have had a branch since 1891), Leicester which was taken over in the 1960's from Joseph Johnson’s ...
... By 1992 the bank had two branches and has since expanded to six branches including branches in Mbarara, Entebbe and Jinja ...
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