Questions and Answers
How are the sections of the liver further divided according to Couinaud's anatomy?
Transversely by an imaginary plane through the right and left main portal pedicles
How many sections does the liver have according to Couinaud's anatomy?
Four sections
How many main portal pedicles are involved in dividing the sections of the liver according to Couinaud's anatomy?
Right and Left main portal pedicles
Study Notes
Couinaud's Anatomy of the Liver
- The liver is divided into 8 functional segments, each with its own blood supply and biliary drainage.
- These segments are further divided into 4 sectors, each receiving a main portal pedicle.
- The 4 main portal pedicles are:
- Right posterior sector (segments VI and VII)
- Right anterior sector (segments V and VIII)
- Left medial sector (segments III and IV)
- Left lateral sector (segment II)
- Each segment is divided into 2 subsegments, making a total of 16 subsegments.
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