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

Content:
Introduction: 0:00
Veins of the Systemic Circulation: 0:29
Superior Vena Cava: 01:05
Azygos & Hemiazygos Vein: 01:32
Brachiocephalic Veins: 05:45
Right Brachiocephalic Vein 06:20
Left Brachiocephalic Vein 08:19
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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)

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[@anidmorina]

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[@TaimTalksMed]

Really glad to hear! Inferior Vena Cava coming up this Wednesday 🥳

[@user-ld1oi5jd3i]

Hello . Hope you are doing good .. what software are u using??

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man you made my day thank you ... i wish if you can make pdf version of this video

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[@TaimTalksMed]

Coming up in 2 weeks time🥳

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[@TaimTalksMed]

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[@apranchigupta]

5-8 posterior intercostal veins drain into accessory hemiazygous vein not 4-7. The 4th one drains into left superior intercostal vein

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