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Liver cytology is the branch of cytology that studies the liver cells and its functions. The liver is a vital organ, in charge of almost all the body’s metabolism. Main liver cells are hepatocytes, Kupffer cells, and hepatic stellate cells; each one with a specific function.
The typical hepatocyte is cubical with sides of 20-30 μm, (in comparison, a human hair has a diameter of 17 to 180 μm). [1] The typical volume of a hepatocyte is 3.4 x 10 −9 cm 3. [2] Smooth endoplasmic reticulum is abundant in hepatocytes, in contrast to most other cell types. [3]
In histology (microscopic anatomy), the lobules of liver, or hepatic lobules, are small divisions of the liver defined at the microscopic scale. The hepatic lobule is a building block of the liver tissue, consisting of portal triads, hepatocytes arranged in linear cords between a capillary network, and a central vein.
About 70–85% of the liver volume is occupied by parenchymal hepatocytes. Nonparenchymal cells constitute 40% of the total number of liver cells but only 6.5% of its volume. [27] The liver sinusoids are lined with two types of cell, sinusoidal endothelial cells, and phagocytic Kupffer cells. [28]
The globin chains are re-used, while the iron-containing portion, heme, is further broken down into iron, which is re-used, and bilirubin, which is conjugated to glucuronic acid within hepatocytes and secreted into the bile. Helmy et al. identified a receptor present in Kupffer cells, the complement receptor of the immunoglobulin family (CRIg).
Amid the wildfires, Blacc described feeling helpless, saying, "I couldn't stop the fire from happening. I couldn't save my children from this experience."
When the chylomicron remnants become small enough (30–80 nm), they pass through the LSEC fenestrations, leading to their metabolism in hepatocytes. Reduced porosity, as in liver cirrhosis , diabetes mellitus or old age may lead to prolonged postprandial lipoproteinemia and increased circulatory cholesterol levels, with increased risk for ...
On the other side of L.A. County, the Eaton fire also began on Jan. 7 and has already burned more than 14,000 acres. Additional fires have also sprung up in the Southern California area.