Veins Mediastinal Ventral: Anatomy and Functions
Ventral mediastinal veins (v. mediastinales ventrales) are venous vessels that are located in the mediastinal part of the chest, located between the lungs. They are an important part of the body's venous system and perform a number of important functions.
Anatomy
The mediastinal ventral veins pass on the anterior surface of the mediastinal chest and cover the heart and most of the thoracic aorta. They have many branches that connect with other venous vessels of the chest, forming a complex network.
Functions
The main function of the ventral mediastinal veins is to drain blood from the mediastinal chest into the superior vena cava. They are also involved in the drainage of the lymph nodes of the mediastinal chest.
In addition, the ventral mediastinal veins can serve as a route for the spread of breast cancer metastases, since they have direct access to the heart and other important organs.
Conclusion
Ventral mediastinal veins play an important role in the venous system of the body. They perform the functions of draining blood from the mediastinal chest to the superior vena cava and participate in the drainage of the lymph nodes of the mediastinal chest. In addition, they can become a route for the spread of breast cancer metastases. Understanding the anatomy and function of the ventral mediastinal veins can be important for the diagnosis and treatment of many chest diseases.
The veins of the medial group are most often found on the anterior surface of the chest. Starting from the place between the 1st and 2nd ribs, they go to the sides of the anterior convexities of the sternum, where they again merge with each other. At this level they enter the medial corner of the pleural cavity.
Below the level of the chest, their branching stops, and only a small part of these veins is directed back to the anterior wall of the pleura, surrounded by the external intercostal muscle. Only the right vein approaches the right phrenic nerve.
The other arteries are two a. intercostalis: one between the inner and middle part of the 1st rib, the other between the middle and back part of the 2nd rib. They participate in the formation of the ventral and dorsal medial canals.
The veins in the neck and armpit area are mainly classified as internal mammary veins. For example, the large internal thoracic vein is formed from three branches: the internal thoracodorsal, the small internal thoracic and the suprasternal. These veins merge at the point where they form the atrial vein, the entry point into the vena cava.