Hepatic histology

Hepatic histology - Hepatic histology Hepatic Acinus:...

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Hepatic histology Hepatic Acinus: Definition: reflects gradient of metabolic activity Zone 1 (periportal) – Most oxygenated blood found in centre of acinus around portal triad \ most susceptible to damage by toxins carried from gut to liver by hepatic portal vein, makes up limiting plate. Zone 3 (centrilobular) – most susceptible to ischaemic damage as closest to central vein (branch of hepatic vein to IVC) Hepatic Lobules: Definition: reflects the regions of the liver and hepatocytes Portal Lobule (triangle) – emphasises exocrine function Classic Lobule – hexagon with central vein at centre & portal triad at each corner. Portal triad consist of branch of hepatic artery proper, tributary of hepatic portal vein and Arteries of importance The blood supply to the upper limbs comes from branches of the subclavian arteries. These branches supply the muscles of the shoulder by anastamosing around the superior and inferior boarders of the scapular, clavicle and humerus. Eventually the
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This note was uploaded on 11/22/2011 for the course BSC BSC1085 taught by Professor Sharonsimpson during the Fall '10 term at Broward College.

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Hepatic histology - Hepatic histology Hepatic Acinus:...

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