Artery Subclavian Right

Subclavian arteries - These are paired arteries that run from the aortic arch to the upper limb. They are branches of the axillary artery and participate in the blood supply to the upper limb and head. The right subclavian artery (a. subclavia dextra) is larger and longer than the left one (a. subclavia sinistra). It starts from the aortic arch and passes through the subclavian foramen, then passes through the chest cavity and enters the axilla, where it connects with the axillary artery. The right subclavian artery also supplies the head, neck, upper chest, and upper extremity.

Arteries - These are the vessels through which blood flows from the heart to the organs and tissues. Arteries are of two types: internal and external. Internal arteries are located inside the body, and external arteries are located outside.

One of the largest arteries in the body is the aorta, which is located in the chest and supplies blood to all organs and tissues of the body. The aorta is the largest artery in the human body; it has a diameter of about 2.5 cm. The aorta consists of three sections: ascending, arcuate and descending. The ascending aorta starts from the left ventricle of the heart and goes up, the arcuate section passes through the chest, and the descending section goes down and ends in the abdominal cavity.

After the aorta there are smaller arteries that provide blood supply to various organs and tissues. For example, the brachiocephalic arteries, which run from the aorta to the head and neck, provide blood supply to the brain, spinal cord, and other organs of the head and neck.

There are also smaller arteries in the body, such as muscular arteries, that supply blood to the muscles. In addition, there are arterioles - the smallest arteries in the body, which provide capillary blood circulation.

**Subclavian artery** - a. subclavica (from Latin sub; - under and Latin clavicle - collarbone) - steam room, originates at the beginning of the neck, between the 1st and 2nd ribs, above the sternocleidomastoid muscle, the end of the artery is in the sternum and connected to the right brachycephalic trunk. Length about 5 cm, diameter 8-9 mm. Along its length, the artery is divided into three branches.

* The sternoclavicular foramen is the external depression (hole) between the sternal end of the clavicle and the first rib, inside which lies the sternoclavicular artery and venous trunk. The artery is often damaged during open fractures of the 1st rib, as well as when trying to carry out an intraosseous block according to Shkolnikov with purulent tendovaginitis of the long head of the supinator of the left shoulder joint: pressing the artery with your fingers to the sternum anterior to the trachea is dangerous due to the possible displacement of the heart to the posterior wall of the chest. * The apical veins are located outward - vv. axillares. Between the apical veins and the subclavian vein on the sternal surface of the worn sternum passes the left sympathetic trunk - the trunk of the part of the upper cervical plexus - plex