Veins Diaphragmatic Superior

The superior phrenic veins (v. phrenicae superiores) are paired veins that collect blood from the organs of the chest and upper abdominal cavity and carry it to the right atrium. They are a continuation of the internal jugular vein (v. jugularis interna) and are located on the posterior surface of the diaphragm, between its tendon parts and the lower part of the ribs. The veins pass through the chest cavity and flow into the superior vena cava (v. cava superior), which is a continuation of the internal jugular vein.

The superior diaphragmatic veins participate in the circulation of blood from the chest and abdominal cavities. They collect blood from the lungs, heart, liver, stomach, spleen, pancreas, kidneys and adrenal glands, as well as from the upper diaphragm and back muscles. Thus, these veins play an important role in maintaining the normal functioning of the body.

The superior vena cava is a continuation of the superior phrenic vein and is involved in blood circulation. It collects blood from the upper half of the body and from the head, neck and upper extremities. The superior vena cava drains into the right atrium, where the blood mixes with blood coming from other veins.

Thus, the superior phrenic veins play a key role in blood circulation in the body. They ensure the delivery of blood from organs and tissues to the heart and further to the right atrium for mixing with other veins and further transport to the lungs for oxygenation and removal of carbon dioxide. In addition, the superior vena cava is also involved in this process, providing blood to the upper half of the body.

Impaired blood circulation through the superior diaphragmatic veins can lead to various diseases such as heart failure, cirrhosis of the liver, diseases of the kidneys and other organs, as well as edema and other health problems. Therefore, it is important to monitor the condition of these veins and maintain their normal functioning.



Phrenic veins are veins that drain blood from the muscles of the chest and abdomen to the heart. The diaphragm is one of the main muscles in the human body, which ensures breathing and maintains the position of internal organs. The veins that emerge from the diaphragm are called phrenic superior veins.

The superior phrenic vein is one of the largest veins that crosses the diaphragm. It connects the veins in the upper abdomen and upper pectoral muscles with the venous system of the heart. The superior phrenic vein has many branches and drains into the inferior vena cava and left gastric vein. The upper part of the vein passes under the thoracic part of the diaphragm and through several lateral parts to reach its lower part at the level of the liver.

The anterior fossa, located in the lower part of the diaphragm, contains the superior deep epigastric veins. They connect to the external carotid canal and empty upward to the left into the venous system of the liver and heart.

The superior phrenic veins play an important role in homeostasis and normal functioning of the body. Through them, blood is transferred from the internal organs to the body, ensuring metabolism throughout the body. Healthy superior phrenic veins are important for maintaining important biological processes such as aerobic respiration. They are also key elements of a successful cardiovascular system and ensure its good functioning. Dysfunction of the diaphragmatic veins can lead to the development of various diseases, but at the moment there is little research devoted to their study.