True about anterior intercostal aery
The anterior intercostal branches of internal thoracic aery supply the upper five or six intercostal spaces. BD CHAURASIA&; S HUMAN ANATOMY UPPER LIMB THORAX VOL I SIXTH EDITION PAGE NO223
Present in 1st to 11th intercostal space
Each intercostal space has two anterior intercosta aeries
Branch of internal thoracic aery
Branch of aoa
Thorax