Vasculature of the Abdomen

Overview

The abdominal vasculature supplies digestive and accessory organs while facilitating nutrient absorption and systemic filtration. This section introduces the major arterial and venous pathways of the abdomen.

Key Structures

Topics include arterial supply from the abdominal aorta and its branches, and venous drainage through the portal and systemic venous systems.

Clinical Relevance and Learning Focus

Understanding abdominal vasculature is vital for evaluating gastrointestinal bleeding, portal hypertension, aneurysms and ischaemia. It supports interpretation of imaging and procedural planning.

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Diagram illustrating the branches of the abdominal aorta.

Arterial Supply

  • The Superior Mesenteric Artery
  • The Aorta
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Illustration depicting the inferior vena cava and its major tributaries, highlighting the left adrenal and left testicular veins draining into the left renal vein.

Venous Drainage

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Illustration of the quadratus lumborum muscle in the posterior abdominal wall.
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Quadratus Lumborum

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Lateral view of the infrahyoid muscles in the neck, showcasing the omohyoid, sternohyoid, sternothyroid, and thyrohyoid muscles.
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The Infrahyoid Muscles

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Illustration of the superficial muscles of the back, highlighting their anatomical positions.
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Levator Scapulae

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