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Superior Vena Cava Tributaries (Azygos, Hemiazygos, Brachiocephalic) - Anatomy

Content: 0:00 Introduction 00:29 Veins of the Systemic Circulation 01:05 Superior Vena Cava 01:32 Azygos & Hemiazygos Vein 05:45 Brachiocephalic Veins 06:20 Right Brachiocephalic Vein 08:19 Left Brachiocephalic Vein ------------------------------- 🫀 Join:    / @taimtalksmed   📷 Follow my IG:   / taimtalksmed   💝 Donation link: https://www.buymeacoffee.com/taimtalk... ------------------------------- Superior Vena Cava - Short Vein - Large Diameter: 2-3 Cm - No valves Azygos Vein (vena azygos) - Unpaired vein located behind the Inferior Vena Cava, on the right side of the vertebral column. - Received blood from the Right Ascending Lumbar Vein (v. Lumbalis ascendens dexter) - May function as portocaval and cavo-caval anastemoses Tributaries: - Visceral Tributaries ○ Esophageal Veins (vv. oesophageales) ○ Bronchial Veins (Vv. bronchiales) ○ Pericardial Veins (Vv. Pericardiacae) ○ Mediastinal Veins (Vv. Mediastinales) - Parietal Tributaries ○ Hemiazygos Vein (vena hemiazygos) □ Acessory Hemiazygos Vein (vena hemiazygos accessoria) ○ Right Superior Intercostal Veins (Vv. Intercostales Superior Dextrae) ○ Right Posterior Intercostal Veins (Vv. Intercostales Posterior Dextrae) ○ Superiro Phrenic Vein (Vv. Phrenicae SUperiores) Left Thoracic Veins: - Left Posterior Intercostal Veins (Vv. Intercostales Posteriores Sinistrae) draining into the accessory hemiazygos vein and the hemiazygos vein Right Brachiocephalic Vein (Vena brachiocephalica dextra) - Formed by a union of the Subclavian Vein (vena subclavia) and the Internal Jugular Vein (vena jugularis interna) - About 3 cm long - Right Vertebral Vein (vena vertebralis) - Right Inferior Thyroid Vein (vena thyroidea inferior) - Right Internal Thoracic Vein (vena thoracica interna dextra) ○ Anterior intercostal veins (venae inercostales anteriores) communicate with the posterior intercostal veins ○ Musculophrenic Vein (vena musculophrenica) ○ Superior Epigastric Vein (vena epigastrica superior) - Right Supereme Intercostal Vein (vena intercostalis suprema) Left Brachiocephalic Vein - About 6 cm long - Left Vertebral Vein (vena vertebralis dexter) - Left Inferior Thyroid Vein (vena thyroidea inferior sinister) - Left Internal Thoracic Vein (vena thoracica interna sinister) - Left Supreme Intercostal Vein (vena intercostalis suprema sinister) - Left Superior Intercostal Vein (vena intercostalis superior sinistra) - Thymic Veins (vv. thymicae) - Pericardiophrenic Veins (venae percardiophrenicae)