Histo-Liver-4/25/12
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Created by:
canguiano1 Plus on May 24, 2012
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16 terms
Terms | Definitions |
|---|---|
 How much does the liver weigh? | Between 1 and 2kg, or 1/40th of total body weight. |
| Where is the exact location of the liver? | Right upper extent is just under the nipple in 4th intercostal space, across from xiphisternal joint. Left extent is one or two intercostal spaces lower under left nipple. |
| What are the two surfaces of the liver? | 1. Diaphragmatic surface: anterior facing has a peritoneum, but posterior does not (it's bare). 2. Visceral surface: flat and covered with peritoneum. |
| What are the features of the liver's visceral surface? | 1. Gallbladder, 2. Fissure for the ligamentum teres (round ligament), 3. Fissure for the ligamentum venosum, and 4. Porta hepatis. |
| What did the ligamentum teres (round ligament) derive from? | Umbilical vein. |
| What did the ligamentum venosum derive from? | Ductus venosus. |
| What is the porta hepatis? | A transverse fissure between the neck of the gallbladder and the junction of the fissures for lig. teres and lig. venosum. |
| How do the hepatic artery and portal vein enter the liver? | Through the porta hepatis. |
| What exits via the porta hepatis? | The hepatic ducts. |
| What structure joins with the hepatic duct just below the porta hepatis? | The cystic duct from the gallbladder. |
| At the right limit of the porta, the right and left leaves of the lesser omentum become continuous to form what structure? | The free margin of the lesser omentum, aka the hepatoduodenal ligament. |
| The hepatic and cystic ducts come together to form which structure? | Common bile duct. |
| Which duct joins the common bile duct to enter the duodenum? What structure regulates entry? | Pancreatic duct joins common bile duct. Entry to duodenum regulated by sphincter of Oddi. |
| What structure separates the liver from the heat in the developing embryo? | Septum transversum. |
| From which structure is the "classical" liver lobule drained? | Central vein. |
| What is a Kupffer cell? | Specialized macrophages located in the liver. They line the walls of the sinusoids that form the reticuloendothelial system. |
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