Pictures Of Human Liver In Body – Your liver is the largest organ in your body, weighing about 1.4 kg (3 pounds) in the average adult. The liver is located in the upper right quadrant of the abdomen, below the diaphragm, right abdomen and under the right rib, below your right lung, fills the right hypochondrium and epigastrium, and expands into it. Left hypochondriac region. The liver is surrounded by a partial wall and extends from the level of the fifth intercostal space to the lower edge of the rib cage on the right side, which protects the organ with high blood vessels from blows that may break. The liver is spear-shaped, with a broad base to the right, and its narrow apex is slightly below the left nipple. Red-brown liver is well supplied with blood vessels.
The fibrous capsule surrounds the liver, and ligaments divide the organ into a large right and a smaller left lobe (Figure 2).
Pictures Of Human Liver In Body
The liver also has 2 smaller lobes: the quadrate lobe and the lobe. Each lobe is divided into several small liver lobes, which is the functional division of the liver (Figure 3). The lobule contains many liver cells that radiate from the central vein. Blood-filled channels called liver sinusoids separate the lamellar groups of these cells. Blood from the digestive tract, sent to the portal vein of the liver, carries newly absorbed nutrients to the sinusoids and nourishes the liver cells.
A Picture Showing The Location Of The Human Liver Stock Photo
Large phagocytic macrophages called Kupffer cells are attached to the lining of the liver sinusoids. They remove bacteria or foreign particles that enter the bloodstream through the intestinal wall and are sent to the liver through the portal vein of the liver. Blood passes through these sinusoids to the central vein of the liver lobes and leaves the liver through the veins of the liver.
Liver lobules contain many bile ducts that transport secretions from liver cells to bile ducts. The ducts of the adjacent lobules unite and eventually form the hepatic duct. These tubes, in turn, join together to form a common liver nucleus.
Note: (a) Transverse section of liver lobe. (b) Longitudinal extension of the liver lobe. (c) Light micrograph of liver lobules in transverse section.
Amazingly versatile, your liver performs over 500 functions. Its digestive function is to produce green alkaline water which is stored in the gallbladder and secreted into the duodenum. Bile salts emulsify fat in the small intestine; That is, they break up oily food particles into tiny particles, just as dish soap breaks up droplets. Oil in the frying pan. These small particles can access the digestive enzymes of the pancreas. The liver also performs many metabolic functions and you cannot live without it:
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Almost all of these functions are performed by a type of cell called a hepatocyte, or simply a liver cell.
The liver performs very important metabolic functions. The liver plays an important role in carbohydrate metabolism, helping to maintain normal blood sugar levels. Liver cells, which respond to the hormone insulin, reduce blood sugar levels by polymerizing glycogen with glycogen. Liver cells that respond to the hormone glucagon increase blood glucose levels by breaking down glycogen into glucose or by converting non-carbohydrates into glucose.
Liver effects on lipid metabolism include oxidation (degradation) of fatty acids at a particularly high rate; synthesis of lipoproteins, phospholipids and cholesterol; and convert excess carbohydrate molecules into fat molecules. Blood transports fat synthesized in the liver to adipose tissue for storage.
Other functions of the liver are related to protein metabolism. These include deaminating amino acids; straight urea; synthesis of plasma proteins such as clotting factors; and convert some amino acids into other amino acids.
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The liver also stores many substances, including glycogen, iron, and vitamins A, D, and B12. In addition, macrophages in the liver help destroy damaged red blood cells and phagocytize foreign antigens. The liver also removes toxins from the blood such as alcohol and certain drugs (detoxification). Table 1 summarizes the main functions of the liver.
Bile is a yellowish-green liquid that is continuously secreted by liver cells. In addition to water, tap water contains tap water salts, bile pigments (bilirubin and biliverdin), cholesterol, and electrolytes. Among them, bile salts are the most abundant and the only component of bile that performs digestive functions.
Bile pigments are breakdown products of hemoglobin from red blood cells and are usually excreted in the bile.
Jaundice, the yellowing of the skin and mucous membranes due to the accumulation of bile pigments is due to many reasons. In obstructive jaundice, the bile duct is blocked, possibly by a stone or tumor. In hepatitis, the liver is either cirrhosis or hepatitis. In hemolytic jaundice, red blood cells are destroyed rapidly, as with an incompatible blood transfusion or blood infection.
Liver Anatomy Human Body Royalty Free Vector Image
Normally, bile does not enter the duodenum until cholecystokinin stimulates the gallbladder to contract. The lining of the intestine produces this hormone in response to protein and fat in the small intestine. Normally the hepatopancreatic sphincter remains contracted until the peristaltic wave in the duodenal wall reaches it. Then the sphincter relaxes and the water flows into the duodenum.
Bile salts help enzymes in digestion. The salts in the bile act on fat cells (accumulated fat molecules) in the same way that soap or detergent does. That is, the salt in the water makes the fat particles break up into small droplets that dissolve well in the water. This process, called emulsification, greatly increases the total surface area of the fatty substance. The oil that comes out is dispersed in water. Fat splitting enzymes (lipases) can absorb fat molecules very efficiently. Bile salts also improve the absorption of fatty acids, cholesterol, and fat-soluble vitamins A, D, E, and K.
The gallbladder is a pearl-shaped sac in the groove below the liver. The gallbladder is lined with epithelial cells and has a strong layer of smooth muscle on its wall. The gallbladder collects bile between meals, reabsorbs water to concentrate the bile, and expels the bile into the small intestine. It joins the cystic duct, which joins the common hepatic duct.
Common hepatic duct and cystic duct together to form the common bile duct (common bile duct). It leads to the duodenum, where the hepatopancreatic sphincter protects its exit. Because these sphincters are normally contracted, bile accumulates in the ducts. It returns to the cystic duct and empties into the gallbladder, where it is stored. Weighing about 3 pounds, the liver is the second largest organ of the body; Just skin bigger and heavier. The liver performs many important functions related to digestion, metabolism, immunity and storage of nutrients in the body. These functions make the liver an important organ, without which the body’s tissue will die quickly due to lack of energy and nutrients. Fortunately, the liver has an amazing ability to regenerate dead or damaged tissue; It has the ability to grow rapidly, like cancer, to restore its normal size and function. Continue scrolling to read more below…
Human Organs Infographic
The liver is a triangular organ that extends across the abdominal cavity below the diaphragm. Most of the liver is located on the right side of the body, down to the right kidney. The liver consists of soft, pinkish-brown tissue covered with connective tissue. This capsule is further covered and strengthened by the abdominal peritoneum, which protects and maintains the liver in the abdominal cavity.
The peritoneum connects the liver in four places: the coronary ligament, the left and right triangular ligaments, and the falciform ligament. These connections are not true ligaments in the anatomical sense; Instead, they are thickened areas of the peritoneal membrane that support the liver.
The ducts that carry bile through the liver and gallbladder are called bile ducts and form a branching structure called the biliary tree. Bile produced by liver cells flows into microscopic channels called bile ducts. Countless bile ducts combine to form the many large bile ducts found in the liver.
These bile ducts form the larger left and right hepatic ducts, which carry bile from the left and right lobes of the liver. These two hepatic ducts join together to form the common hepatic duct, which drains all bile from the liver. The common hepatic duct eventually joins with the cystic duct from the gallbladder to form the common bile duct, which carries bile to the duodenum of the small intestine. Most of the bile produced by the liver is pushed into the cystic duct by peristalsis to enter the gallbladder until it is needed for digestion.
Anatomy Of Human Liver In X Ray View Stock Illustration
The blood supply to the liver is unique among all organs of the body due to the vascular system of the liver. Blood that reaches the spleen, stomach, stomach, gallbladder, bladder, and intestines passes through the blood vessels in these organs and collects in the portal vein of the liver. The hepatic portal vein then carries this blood to the tissues
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