The Liver

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Term Paper Title	The Liver
# of Words	916
# of Pages (250 words per page double spaced)	3.66

The Liver

The Liver:
Facts, Functions, and Structure of

Justin Amos
Anatomy/ Physiology
October 24, 1997

Facts and Functions
     The liver is the largest organ in the entire, normal human body.  It weighs anywhere from 2.5 to 3.3 pounds.  With its large size it is also a very resilient organ.  Up to 3/4 of its cells can be removed before is ceases to function.  It is red-brown organ roughly shaped like a cone.  The liver is located in the upper right abdominal cavity immediately beneath the diaphragm.  Without the liver, we could not survive.  It serves as the body’s chemical factory and it regulates the levels of most of the main chemicals in the blood.  It is classified in the digestive system, because of the bile it produces.  Bile is produced in the liver and stored in the gallbladder.  Although it contains no digestive enzymes, bile does dilute and neutralize stomach acid, and it increases the efficiency of fat digestion and absorption.  The liver is the organ that allows us to drink alcohol.  With the help of the kidneys, the liver clears the blood of drugs, alcohol, and other poisonous substances by absorption.  It then alters the chemical structure of the substance absorbed, makes them water soluble, and excretes it in the bile.  From there, the bile carries waste, including the absorbed substance, to the small intestine, taking a pitstop at the gallbladder,  where it also helps in the breakdown and absorption of fats present.
     The liver also produces albumin, compliment, coagulation factors,  and globin; all important proteins for blood plasma.  Albumin regulates the exchange of water between blood and tissues.  Compliment is a group of proteins that plays a part in the immune system’s defenses against infection.  Coagulation factors enable blood to clot when a blood vessel wall is damaged.  Globin is a major component of the oxygen-carrying pigment hemoglobin.  Yet another function of the liver is to produce synthesized cholesterol and special proteins that carry fats around the body.
     Along with producing many important substances, it also stores a lot of important substances as well.  It receives glucose ,not immediately needed, from the hepatic portal vein and stores it as glycogen.  When the body needs more energy and heat, the liver converts the stored glycogen back to glucose and releases it into the bloodstream to be used.  As with the blood, the liver also regulates the blood level of amino acids, ch...

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