Human vs. Animal Liver: Structural Similarities and Species-Specific Variations

Structure & Function Similarities

• Hepatocytes perform detoxification, metabolism, bile production, storage.
• Kupffer cells (liver macrophages) clear bacteria/debris.
• Dual blood supply: hepatic artery (oxygenated) + portal vein (nutrient-rich).
• Remarkable regeneration capacity after injury/resection.

Species Differences

• Lobation: Human – 2 main lobes; Pig – multiple lobes; Cow – single large lobe.
• Bile composition varies.
• Metabolic capabilities differ (e.g., drug metabolism rates).

Comparative research informs human liver disease studies.