Veins Accompanying the Brachial Artery (V. Comitantes Arteriae Brachialis, Pna)

Veins accompanying the brachial artery (V. Comitantes Arteriae Brachialis, Pna)

In the human body there is a complex network of blood vessels that perform the important function of transporting blood. The veins accompanying the brachial artery are part of this network and play an important role in the circulation of the arm and shoulder.

V. Comitantes Arteriae Brachialis, also known as stumps (from the Latin "venae comitantes arteriae brachialis"), are veins that accompany the brachial artery along its path. These veins are located next to the artery and usually run parallel to each other. They are found inside muscles and connect with other veins to form vascular assemblies.

The function of these veins is to collect blood from the tissues of the upper limb and return it back to the heart. The veins accompanying the brachial artery collect blood from the muscles, skin and other tissues of the shoulder and transmit it to the deep veins of the upper limb. They also serve to transport waste blood and waste back to the cardiovascular system for further filtration and purification.

Structurally, the veins accompanying the brachial artery usually have thin walls and a larger diameter compared to the artery. This allows them to hold a larger volume of blood and ensure normal blood flow. The venous valves located inside these veins act as guards, preventing blood from flowing back and keeping it flowing in one direction towards the heart.

A feature of the veins accompanying the brachial artery is their important role in medical practice. Their use may be necessary during some medical procedures, such as giving intravenous medications or taking blood samples for testing. Additionally, in some upper extremity surgeries, the veins accompanying the brachial artery may be included in the process of vascular reconstruction and grafting.

In conclusion, the veins accompanying the brachial artery (V. Comitantes Arteriae Brachialis, Pna) play an important role in the circulation of the arm and shoulder. They collect and transport blood from the upper limb back to the heart. Understanding the anatomy and function of these vessels is of great importance to medical practice and can be applied to a variety of medical procedures and surgeries.

Veins accompanying the brachial artery / V. comitentes art. brachialis

Description:

The veins following the course of the arteries at the initial stages form superficial venous trunks, and then return to the internal intermuscular septum and anastomose with the deep veins. These veins are a continuation of the small veins of the palmaris own muscle. Veins accompanying the distal axillary artery. Initial portion v. humeralis laevis, 3-4 cm long, drains the subfascial space on the anterior surface of the deltoid muscle and forearm and runs obliquely down and forward along the lateral surface of the humerus to the level of the anteromedial edge of the clavicle. In the latter, a bone wall in the form of a ridge divides it into two branches: a superficial one directed to the lower third of the shoulder and a deep one directed to the medial half of the brachial artery. Smaller branches extend from them, connecting to the saphenous veins, including the ulnar vein.

The median trunk of the short transverse palmar veins in the proximal section approaches the medial epicondyle, on the average reaches it, and near the stump of the distal metaepiphysis of the radius