Question

From which artery the axillary artery comes from?

Answer 1

The axillary artery originates from the subclavian artery. On the right side, the subclavian artery arises from the brachiocephalic artery, and on the left side, it arises directly from the aortic arch.

Step-by-step explanation:

The axillary artery is the continuation of the subclavian artery as it penetrates the body wall and enters the axillary region. As the subclavian artery exits the thorax into the axillary area, it is renamed the axillary artery. This important vessel supplies blood to the region near the head of the humerus through the humeral circumflex arteries. Most of the axillary artery continues into the brachium, becoming the brachial artery, which divides into several smaller branches, notably the deep brachial arteries and the ulnar collateral arteries. These branches supply blood to the posterior arm and elbow region, respectively.

The origin of the axillary artery differs on each side of the body: the right subclavian artery arises from the brachiocephalic artery, while the left subclavian artery comes directly from the aortic arch. Both these arteries give rise to internal thoracic, vertebral, and thyrocervical arteries before transitioning into the axillary artery, which is responsible for supplying blood to the arms, chest, shoulders, back, and central nervous system.

Answer 2

The axillary artery is a large muscular vessel that carries oxygen-rich blood to the upper limb, as well as to parts of the musculocutaneous system of the scapula and upper lateral thorax 1. It is a continuation of the subclavian artery that begins at the outer border of the first rib 12. The subclavian artery is a branch of the aortic arch