mediastinal veins
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mediastinal emphysema — ▪ pathology pocket of air surrounding the heart and central blood vessels contained within the mediastinum (the central cavity in the chest situated between the lungs) that usually forms as a result of lung rupture. When the alveoli (air… … Universalium
Vein — A blood vessel that carries blood low in oxygen content from the body back to the heart. The deoxygenated form of hemoglobin (deoxyhemoglobin) in venous blood makes it appear dark. Veins are part of the afferent wing of the circulatory system… … Medical dictionary
vena — SYN: vein. [L.] v. advehens, pl.venae advehentes collective term for a series of branching channels in the early embryo receiving blood from the umbilical and/or vitelline venous systems and passing the mixed blood to the sinusoids of the live … Medical dictionary
Hemiazygos vein — Infobox Vein Name = PAGENAME Latin = vena hemiazygos GraySubject = 172 GrayPage = 667 Caption = Diagram showing completion of development of the parietal veins. (Hemiazygos vein visible at center left.) Caption2 = The venæ cavæ and azygos veins,… … Wikipedia
venae mediastinales — [TA] mediastinal veins: numerous small branches that drain blood from the anterior mediastinum into the brachiocephalic vein, azygos vein, or the superior vena cava … Medical dictionary
branch — An offshoot; in anatomy, one of the primary divisions of a nerve or blood vessel. A b.. See ramus, artery, nerve, vein. SYN: ramus (1) [TA]. accessory meningeal b. SYN: pterygomeningeal artery … Medical dictionary
Sign — Any abnormality that indicates a disease process, such as a change in appearance, sensation, or function, that is observed by a physician when evaluating a patient. * * * 1. Any abnormality indicative of disease, discoverable on examination of… … Medical dictionary
Artery — A vessel that carries blood that is high in oxygen content away from the heart to the farthest reaches of the body. Since blood in arteries is usually full of oxygen, the hemoglobin in the red blood cells is oxygenated. The resultant form of… … Medical dictionary
human cardiovascular system — ▪ anatomy Introduction organ system that conveys blood through vessels to and from all parts of the body, carrying nutrients and oxygen to tissues and removing carbon dioxide and other wastes. It is a closed tubular system in which the… … Universalium
Ramus — In anatomy, a branch, such as a branch of a blood vessel or nerve. For example, the ramus acetabularis arteriae circumflexae femoris medialis is the branch of an artery that goes to the socket of the hip joint. The plural of ramus is rami. * * *… … Medical dictionary
