Liver anatomy
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Liver anatomy

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This is not a substitute for Books. Let it just help you understand some concepts in liver anatomy.

This is not a substitute for Books. Let it just help you understand some concepts in liver anatomy.
Continuation of this work will depend on your feedback. Stay Blessed.

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Liver anatomy Liver anatomy Presentation Transcript

  • The Liver C.Masina
  • The Liver• The largest internal body organ• Largest gland• Largest organ apart from skin• Weighs about 1.5kg• Found in the upper abdominal cavity: extends from right upper quadrant to left upper quadrant of the abdomen• Attached to diaphragm by  falciform and coronary ligaments Left and right triangular ligaments
  • Functions• Bile production and secretion• Detoxification• Storage of glycogen• Protein synthesis• Production of heparin and bile pigments• Erythropoiesis (in fetus)
  • Liver surfaces• Divided into 2 anatomical regions: 1.Diaphragmatic surface: Smooth and dome-shaped surface Anterior liver part Inferior to diaphragm Separated from diaphragm by subphrenic recess and from posterior organs {kidney and suprarenal glands} by hepatorenal recess Covered by peritoneum except
  • 1.Diaphragmatic surface
  • 2. Visceral surfaceCovered by visceral peritoneum except porta hepatis and gall bladder bed.• The visceral surface is related to:  Right side of the stomach i.e. gastric and pyloric areas  Superior part of the duodenum i.e. duodenal area  Lesser omentum  Gall bladder  Right colic flexor and right transverse area ; colic area  Right kidney and suprarenal gland; Renal area
  • Posterior liver view
  • Liver lobesRight and left lobeFunctionally independent i.e. each with own blood and nervesupplyBlood supply in by:Hepatic arteryPortal veinBlood out through:Vein and biliary drainage
  • Liver lobes1.The Right lobeDemarcated by : 1. Gall bladder fossa 2. Inferior vena cava fossa 3. Imaginary line from fundus of gall bladder and inferior vena cava
  • Liver lobes2. Left lobe Divided into: Medial and lateral segments 1.Medial superior – caudate lobe 2.Medial inferior - quadrate lobe
  • 2. Left lobe cont… The lateral segment is separated from the medial segments by: On visceral surface: 1. fissure of ligamentum teres (round ligament) 2. fissure of ligamentum venosum On diaphragmatic surface: 1. Attachment of falciform ligament
  • Visceral surface1. The round ligament(ligamentum teres) – obliterated umbilical vein2. The ligamentum venosum – fibrous remnant of fetal ductus vein3. The Porta hepatis (hepatic potal; portal fissure) - transverse fissure on the visceral surface of the liver. – It gives passage to the: 1. Portal vein 2. Hepatic artery 3. Hepatic nerve plexus 4. Hepatic ducts 5. Lymphatic vessels
  • Peritoneal relations of the LiverThe Lesser omentum• Encloses the portal triad (bile duct, hepatic artery and portal vein )• Passes from the liver to lesser curvature of the stomach + 2 cm of duodenum• Thick free edge -- hepatoduodenal ligament• Sheet like remainder – hepatogastric ligament
  • To be continued ….• To be continued………………..• To be continued………………..