Inferior vena cava
inferior vena cava. n. Abbr. IVC. A large vein formed by the union of the two common iliac veins that receives blood from the lower limbs and the pelvic and abdominal viscera and empties into the right atrium of the heart. Also called postcava. inferior vena cava the venous trunk for the lower extremities and the pelvic and abdominal viscera; it empties into the right atrium of the heart. See Appendix 2-6. superior vena cava the venous trunk draining blood from the head, neck, upper extremities, and chest The inferior vena cava carries blood from the lower half of the body whilst the superior vena cava carries blood from the upper half of the body. It is formed by the joining of the right and the left common iliac veins, usually at the level of the fifth lumbar vertebra. In the embryo, the inferior vena cava and right atrium are separated by the valve of the inferior vena cava, also known as the Eustachian valve. In the adult, this valve typically has totally regressed or remains as a small fold of endocardium Because the inferior vena cava is located to the right of the midline, drainage of the tributaries is not always symmetrical. On the right, the gonadal veins and suprarenal veins drain into the inferior vena cava directly. On the left, they drain into the renal vein which in turn drains into the inferior vena cava. In the embryo, the inferior vena cava and right atrium are separated by the valve of the inferior vena cava, also known as the Eustachian valve. In the adult, this valve typically has totally regressed or remains as a small fold of endocardium The azygos venous system is the only direct path into the SVC. The internal thoracic vein is the collector between SVC and inferior vena cava (IVC) via epigastric and iliac veins. The vertebral veins with intercostals, lumbar and sacral veins, represent the posterior network between SVC and IVC. Introduction 1.1 Anatomy The superior vena cava (SVC) originates in the chest, behind the first right sternocostal articulation, from the confluence of two main collector vessels: the right and left brachiocephalic veins which receive the ipsilatera l internal jugular and subclavian veins. A large vein that drains blood from the kidney and empties into the inferior vena cava; the renal veins lie on top of (anterior to) the renal arteries. To reach the vena cava, the left renal vein passes over the aorta and is three times as long as the right renal vein. The vein accompanying the common iliac artery; it is formed by the union of the external and internal iliac veins, and it ends by merging with the opposite common iliac vein to form the inferior vena cava. The superior vena cava returns blood from the upper body to the heart, and the inferior vena cava returns the blood from the lower part of the body. The superior vena cava is thin-walled, and the blood is under low pressure. It lies near lymph nodes in the chest. Superior vena cava syndrome (SVCS) is a collection of symptoms that usually occur in patients who have lung cancer, non-Hodgkin lymphoma, or other cancers. It also can occur from noncancer causes. A vein running along the back wall of the thorax on the right side of the thoracic aorta; at the level of the fourth thoracic vertebra, the azygos vein curves forward, over the top of the hilum (root) of the right lung, and empties its blood into the superior vena cava. The vein accompanying the common iliac artery; it is formed by the union of the external and internal iliac veins, and it ends by merging with the opposite common iliac vein to form the inf Structure [edit]. The inferior vena cava is formed by the joining of the left and right common iliac veins and brings collected blood into the right atrium of the heart. It also joins with the azygos vein (which runs on the right side of the vertebral column) and venous plexuses next to the spinal cord. In the embryo, the inferior vena cava and right atrium are separated by the valve of the inferior vena cava, also known as the Eustachian valve. In the adult, this valve typically has totally regressed or remains as a small fold of endocardium The inferior vena cava is the largest vein in the body. It carries de-oxygenated blood from the lower extremities to the right atrium of the heart and then to the lungs. An inferior vena cava filter or IVC filter is a small cone-shaped device that is implanted in the inferior vena cava just below the kidneys.
http://medical-dictionary.thefreedictionary.com/inferior+vena+cava https://en.wikipedia.org/wiki/Inferior_vena_cava https://en.wikipedia.org/wiki/Inferior_vena_cava http://www.intechopen.com/download/pdf/28652 http://medical-dictionary.thefreedictionary.com/internal+thoracic+vein http://www.urmc.rochester.edu/encyclopedia/content.aspx?ContentTypeID=34&ContentID=23861-1 http://medical-dictionary.thefreedictionary.com/internal+thoracic+vein https://en.wikipedia.org/wiki/Inferior_vena_cava http://surgery.med.umich.edu/vascular/patient/treatments/ivc_filters.shtml
what is the thoracic vena cava also called