Brachial Artery

• Continuation of the Axillary Artery at the Lower Border of Teres Major

• Median nerve lateral to it but crosses obliquely in front at about the middle of the arm and lies on its medial side distally

• Ulnar nerve posterior to it above and then leaves it in the lower part of the arm to pass through the Medial Intermuscular Septum

• Passes into the Cubital Fossa before dividing into the Radial Artery and Ulnar Artery at the level of the neck of Radius

• Largest Branch of Brachial Artery: Profunda Brachii Artery

  • Leaves through the Triangular Interval (together with the Radial Nerve)
  • Runs in the radial groove with the Radial Nerve
  • Supplies: Triceps Brachii, Nutrient Artery to Humerus
  • Two terminal branches: Middle Collateral Artery and Radial Collateral Artery
    • Middle Collateral Artery – descends in the Medial Head of Triceps
    • Radial Collateral Artery – passes through the Lateral Intermuscular Septum together with the Radial Nerve

• Other Branches of Brachial Artery: Superior Ulnar Collateral Artery, Inferior Ulnar Collateral Artery, muscular branches to flexor muscles, Nutrient Artery to Humerus