Background The intraoperative anatomy of the saphenofemoral junction can vary from the 'textbook' description of six independent proximal tributaries: three medial - superficial external pudendal, deep external pudendal and the posteromedial thigh branch - and three lateral - superficial epigastric, superficial circumflex iliac and the anterolateral thigh branch. anatomy .Anatomy Abbreviations ALMv Anterior lateral marginal vein bFFE Balanced fast field echo CPA Cerebellopontine angle F Flocculus MRI Magnetic resonance imaging MVD Microvascular decompression PTv Pontotrigeminal vein SCA Superior cerebellar artery SPS Superior petrosal sinus SPV Superior petrosal vein SPVC Superior petrosal vein complex A tributary or affluent is a stream or river that flows into a larger stream or main stem (or parent) river or a lake. tributaries, and rain to flow all year round. In human cardiovascular system: Inferior vena cava and its tributaries. A tributary does not flow directly into a sea or ocean. It begins above the level of the inferior margin of the inguinal ligament, enters the pelvis, ascends medially along the psoas major. The inferior vena cava is a large, valveless, venous trunk that receives blood from the legs, the back, and the walls and contents of the abdomen and pelvis. It runs in the splenorenal ligament in close association with the splenic artery. The implanting electrophysiologist is usually challenged by a high degree of variability in the coronary venous anatomy, making it important to have a more consistent and uniform segmental approach to describe the coronary venous tree and its branches. Results: Two veins are consistently present: the middle cardiac vein (mean diameter 2.62 ± 1.26 mm) and the great cardiac vein (mean diameter 3.55 ± 1.24 mm). The stereomicroscope A river’s natural ups and downs are called “pulses.” Like a human being’s pulse, a river’s natural flow of water is life support for animals, plants, and fish, delivering what The great saphenous vein lies within the subcutaneous tissues of the leg in the thigh in the saphenous compartment, which is bounded posteriorly by the deep fascia and superficially by the saphenous fascia 3. It then unites with the internal iliac vein to form the common iliac vein. Others go from cold, raging rivers to small, warm streams as the snowpack runs out, or even stop flowing completely. Superior vena cava and its tributaries. The coronary sinus is the gateway for left ventricular (LV) epicardial lead placement for cardiac resynchronization therapy. All procedures were videotaped. Gross anatomy Origin and course. Gross anatomy Origin and course. The number and anatomic distribution of the infrarenal tributaries of the anterior part of … Tributaries from the head and neck, the arms, and part of the chest unite to form the superior vena cava. Venous channels called venous sinuses lie between the two layers of the dura mater, the outer covering of the brain; they possess no valves.Venous drainage of the brain is effected by these sinuses and communicating vessels. Tributaries. The anatomy and fascial relationships of the superficial veins was investigated by dissection in 46 inferior limbs from 23 cadavers (14 males, 9 females, mean age 62 years). Objective: We evaluated the anatomy of the infrarenal portion of the human inferior vena cava and their ventral tributaries by video laparoscopy.Study Design: A total of 112 patients underwent laparoscopic para-aortic lymphadenectomy for gynecologic malignancies. 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