How do you remember liver segments?
The segments are represented by the following:
- segment 1: (caudate): the thumb, in the palm of the hand.
- segment 2: index finger proximal phalanx.
- segment 3: index finger middle phalanx.
- segment 4a: middle finger proximal phalanx.
- segment 4b: middle finger middle phalanx.
- segment 5: ring finger middle phalanx.
What is segment 7 in the liver?
segment 7 (VII) is located above the portal plane to the right of the right hepatic vein. segment 8 (VIII) is located above the portal plane between the middle and right hepatic veins.
How are the liver segments divided?
The hepatic veins are found at the periphery of each segment, whereas the center has branches of the portal veins, hepatic arteries, and bile ducts. The middle hepatic vein divides the liver into left and right lobes. The left hepatic vein divides the left lobe into lateral (2, 3) and medial (4a, 4b) segments.
How many segments are in the human liver?
There are eight liver segments.
What is segment V of liver?
segment 5 (V) is located below the portal plane between the middle and right hepatic veins. segment 6 (VI) is located below the portal plane to the right of the right hepatic vein.
How liver segments are divided?
The Couinaud classification divides the liver into 8 functional segments. The hepatic veins are found at the periphery of each segment, whereas the center has branches of the portal veins, hepatic arteries, and bile ducts. The middle hepatic vein divides the liver into left and right lobes.
What is the anatomy of the liver?
Structure. The liver consists of four lobes: the larger right lobe and left lobe, and the smaller caudate lobe and quadrate lobe. The left and right lobe are divided by the falciform (“sickle-shaped” in Latin) ligament, which connects the liver to the abdominal wall.
What is hepatic segment 4b?
segment 4 (IV) lies between the left and middle hepatic veins; it is subdivided into 4a (IVa) (superior) and 4b (IVb) (inferior) subsegments. easy tip: 4a is above and 4b is below the portal plane. segment 4 includes the quadrate lobe.
What are the surgical segments of liver?
Table 1
| Couinaud Segments | Anatomic Term | Surgical Resection Term |
|---|---|---|
| 2–4 | Left liver | Left hepatectomy |
| 5,8 | Right anterior section/sector | Right anterior sectionectomy/sectorectomy |
| 6,7 | Right posterior section/sector | Right posterior sectionectomy/sectorecomty |
| 4 | Left medial section | Left medial sectionectomy |
What is Segment 5 of the liver?
segment 5 (V) is located below the portal plane between the middle and right hepatic veins. segment 6 (VI) is located below the portal plane to the right of the right hepatic vein. segment 7 (VII) is located above the portal plane to the right of the right hepatic vein.
How many segments are present in liver?
What is Segment 6 of liver?
segment 6 (VI) is located below the portal plane to the right of the right hepatic vein. segment 7 (VII) is located above the portal plane to the right of the right hepatic vein. segment 8 (VIII) is located above the portal plane between the middle and right hepatic veins.