While performing an operation in the area of axillary crease a surgeon has to define an arterial vessel surrounded by fascicles of brachial plexus. What artery is it?

Answer options

1. A.axillaris
2. A.transversa colli
3. A.profunda brachii
4. A.vertebralis
5. A.subscapularis

Explanation

The axillary artery is a large blood vessel that conveys oxygenated blood to the lateral aspect of the thorax, the axilla (armpit), and the upper limb. Its origin is at the lateral margin of the first rib, before which it is called the subclavian artery. The brachial plexus is a network of nerves formed by the ventral rami of the lower four cervical nerves and the first thoracic nerve (C5, C6, C7, C8, and T1). This plexus extends from the spinal cord, through the cervicoaxillary canal in the neck, over the first rib, and into the armpit. It supplies afferent and efferent nerve fibers to the chest, shoulder, arm, and hand.