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Gross Anatomy
Chapter 12; Liver
40
Medical
Professional
07/22/2013

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Term
The Liver
Definition
Occupies major portion of the right hypochondrium. RUQ protected by ribs.
Term
right lobe measures
Definition
13-17 cm Normal size
Term
Visceral surface
Definition
also inferior surface of liver; rests on the upper abdominal organs
Term
Falciform Ligament
Definition
divides right and left halves, part of umbilical cord. Ends at the ligamentum teres or round ligament inferiorly.
Term
3 lobes of the Liver
Definition
left, right and caudate
Term
locating the hepatic veins
Definition
you will know you have seen the top of liver under ribs
Term
Right hepatic
Definition
separates and gets smaller. One of three draining the liver , via the IVC, drains the right lobe of the liver
Term
Hepatic veins do not have
Definition
bright up
Term
portal hepatis
Definition
area of the hilus where portal vein and hepatic artery enter and common bile duct exits. THEY HAVE A GLISTENING SHEATH AND GET SMALLER AND SMALLER
Term
job of hepatic veins
Definition
collect de-oxygenated blood to heart
Term
The liver's job
Definition
synthesize proteins and heparin. detox of poisonous substances. acting as a protector. forms bile and urea
Term
liver's metabolic function
Definition
storing minerals and vitamins metabolize steroid hormones, detox alcohol and barbiturates, metabolize fats, carbs and proteins.
Term
right hepatic vein
Definition
separates and drains the anterior and posterior segments of the right lobe.
Term
left hepatic vein
Definition
separates and drains the medial and lateral segments of the left lobe of the liver
Term
middle hepatic vein
Definition
separates and drains the right and the medial left liver lobes.
Term
Kupffer cells
Definition
specialized macrophages (phagocytes) located inside the liver that breakdown ethanol
Term
superior lobe of liver
Definition
up against diaphragm
Term
right lobe
Definition
lies close to anterolateral abdominal wall. related to right lateral undersurface of diaphragm along the right midaxillary line from the 7th to the 11th rib. right lateral to ribs on coastal margin.
Term
left lobe
Definition
varies in size and shape. left margin closely related to the gastric body and antrum of the stomach. frequently lies anterior to the body of the pancreas, the splenic vein and splenic artery.
Term
caudate lobe
Definition
covered by peritoneum of the lesser sac. Anterior boundary marked by the posterior surface of the left portal vein and posterior boundary is the IVC.
Term
bare area
Definition
boundaries , falciform ligament, right anterior inferior and right posterior coronary ligament and right triangular ligament, gastrohepatic ligament, left anterior and left posterior coronary ligaments and the left triangular ligament
Term
portal system
Definition
supplies 75% of total bloodflow to liver. consists of 3 vessels, superior mesonteric vein, splenic vein, and inferior mesonteric vein they form the portal vein before entering the liver; portal confluence; posterior pancreatic neck, already filtered once.
Term
the liver is enclosed by a tight fibrous capsule known as ---- and is largely covered by the peritoneum of the greater sac
Definition
Glissons capsule
Term
liver structures include
Definition
portal veins , hepatic veins, arteries and ducts and the hepatic ligaments and fissures
Term
what does the liver posterior boarder
Definition
the boney lumbar region of the muscular posterior abdominal wall
Term
the bulk of the liver lies beneath what
Definition
the right coastal margin
Term
left lobe of the liver
Definition
varies in size and shape and may extend deeply into the left upper quadrant.
Term
right hepatic vein
Definition
has regular venous walls
Term
what are the branching patterns of the portal triads
Definition
portal vein, hepatic artery and bile ducts.
Term
portal confluence
Definition
union of the splenic vein, superior and inferior mesenteric veins that form the portal vein before entering the liver.
Term
main portal vein
Definition
enters the porta hepatis and divides into left and right branches
Term
what supplies the bulk of the liver centrally with blood from the gastrointestinal tract for processing
Definition
main and right portal veins
Term
what branch of the celiac axis supplies the liver
Definition
common hepatic artery
Term
what courses superiority supplying the liver via the right , middle, and left hepatic arteries.
Definition
proper hepatic artery
Term
bare area separates and lies between what
Definition
the right posterior subphrenic space above the posterior subheptic space (known as the Morrisons space)
Term
what is the main component of the bile that is secreted by the liver
Definition
cholesterol
Term
reidels lobe
Definition
mostly found in women , it is a normal variant. extra lobe extends like a tongue by right kidney.
Term
the liver synthesizes the blood proteins
Definition
albumin, fibrinogen, prothrombin, and globulins.
Term
how should the normal liver appear
Definition
homogeneouos, and moderately echogenic throughout.
Term
ligaments and fissures are demonstrated as what
Definition
highly echogenic because of the presence of collegian and fat within and around these structures
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