The Accessory Organs of the Abdomen

Overview

Several abdominal organs support digestion, metabolism, filtration and endocrine regulation. This section introduces these structures and outlines their roles within abdominal and systemic physiology.

Key Structures

Topics include the liver, gallbladder, pancreas, spleen, adrenal glands, kidneys and the mesentery, describing their anatomical position, functional roles and vascular relationships.

Clinical Relevance and Learning Focus

Knowledge of accessory organ anatomy is essential for assessing jaundice, pancreatitis, renal disease, splenic injury and endocrine disorders. This section supports diagnostic reasoning and surgical planning.

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The Liver

Overview illustration of the biliary tree, highlighting the anatomy and connections related to the gallbladder.

The Gallbladder

Illustration of the arterial supply and venous drainage of the pancreas, highlighting the splenic artery and vein.

The Pancreas

The Spleen

The Adrenal Glands

The Kidneys

Simplified illustration of the mesentery connecting the small and large intestines to the posterior abdominal wall.

The Mesentery

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Illustration of the superficial muscles of the back, highlighting their anatomical positions.
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Diagram illustrating the cutaneous innervation of the gluteal region.
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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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