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The left marginal vein is a vein of the heart which courses near or over the left margin of the heart. It drains venous blood from much of the myocardium of the left ventricle . It usually empties into the great cardiac vein (but may sometimes instead drain into the coronary sinus directly).
The venous angle (also known as Pirogoff's angle and in Latin as angulus venosus) is the junction where the ipsilateral internal jugular vein and subclavian vein unite to form the ipsilateral brachiocephalic vein. [1] [2] The thoracic duct drains at the left venous angle, and the right lymphatic duct drains at the right
The oblique vein of the left atrium (oblique vein of Marshall) is a small vein which descends obliquely on the back of the left atrium and ends in the coronary sinus near its left extremity; it is continuous above with the ligament of the left vena cava (vestigial fold of Marshall), and the two structures form the remnant of the left Cuvierian duct.
A gel is used with the probe to make a good acoustic impedance contact. The training and expertise of the examiner is important because of the many technical complications that can present. Venous anatomy, for example, is not constant; for example, a patient's vein layout of the right limb is not identical to that of the left limb. [citation ...
The smallest cardiac veins (also known as the Thebesian veins (named for Adam Christian Thebesius) are small, valveless veins in the walls of all four heart chambers [1] that drain venous blood from the myocardium [2] directly into any of the heart chambers. [3] They are most abundant in the right atrium, and least abundant in the left ventricle.
The microscope was destroyed in an air raid in 1944, and von Ardenne did not return to his work after World War II. [4] The technique was not developed further until the 1970s, when Albert Crewe at the University of Chicago developed the field emission gun [5] and added a high-quality objective lens to create a modern STEM. He demonstrated the ...
In prenatal development, the eustachian valve helps direct the flow of oxygen-rich blood through the right atrium into the left atrium and away from the right ventricle. Before birth, the fetal circulation directs oxygen-rich blood returning from the placenta to mix with blood from the hepatic veins in the inferior vena cava. Streaming this ...
The c wave corresponds to right ventricular contraction causing the closed tricuspid valve to bulge towards the right atrium during RV isovolumetric contraction. The x ' descent follows the 'c' wave and occurs as a result of the right ventricle pulling the tricuspid valve downward during ventricular systole (ventricular ejection/atrial relaxation).