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Anatomy and Physiology

Welcome to our health education library. The information shared below is provided to you as an educational and informational source only and is not intended to replace a medical examination or consultation, or medical advice given to you by a physician or medical professional.

Liver, How it Works

How the Liver Works

The liver is in the upper right part of the abdomen. Most of it is protected by the ribs. It is a vital organ that has many jobs. The liver:

  • Makes bile, a substance that helps the body absorb fat.
  • Makes proteins and blood-clotting factors that the body needs.
  • Regulates glucose (sugar) in the blood and stores extra sugar.
  • Works with the stomach and intestines to digest food.
  • Stores vitamins and minerals.
  • Removes toxic (poisonous) substances from the blood.

The Parts of the Liver and Nearby Organs

  • Biliary tree: A network of tubes that carry bile out of the liver and into the duodenum.
  • Bile ducts: Tubes between the liver and small intestine. Bile drains into them from the liver.
  • Common bile duct: The duct from the liver (hepatic duct) and the duct from the gallbladder (cystic duct) meet to form the common bile duct. The common bile duct carries bile to the duodenum.
  • Duodenum: The first part of the small intestine. When bile leaves the liver, it flows through the bile ducts into the duodenum. Here, bile starts mixing with food to help digestion.
  • Gallbladder: An organ that stores bile.
  • Spleen: An organ that filters blood. It also helps keep the body healthy and free of infection, as part of the immune system.
  • Splenic vein: A blood vessel that carries blood from the spleen to the portal vein.
  • Portal vein: A blood vessel that carries nutrient-rich blood from the digestive tract and spleen into the liver.
  • Inferior vena cava: A large vein that carries blood from the liver, legs, and kidneys to the heart.
  • Hepatic veins: Blood vessels that carry blood out of the liver to the inferior vena cava.
  • Hepatic artery: A blood vessel that carries blood into the liver from the heart.

Blood Flows Through the Liver

All the blood that flows from the intestines, stomach, and spleen is filtered through the liver. The blood flows into the liver through the portal vein. It filters through the liver in a system of smaller and smaller veins. As blood passes over liver cells, these cells process nutrients in the blood. This processing makes products like proteins and sugars that can be used by the body. Blood is carried out of the liver through the hepatic vein to the heart.

Digestive System,Anatomy of the

Anatomy of the Digestive System

Food gives the body the energy needed for life. The digestive system breaks food down into basic nutrients that can be used by the body. The digestive tract is a long, muscular tube that extends from the mouth through the stomach and intestines to the anus. As food moves along the digestive tract, it is digested(changed into substances that can be absorbed into the bloodstream). Certain organs (such as the liver, gallbladder, and pancreas) help with this digestion. Parts of food that cannot be digested are turned into stool, which is waste material that is passed out of the body.

Digestive System

  • The mouth takes in food, breaks it into pieces, and begins the process of digestion.
  • The esophagus moves food from the mouth to the stomach.
  • The stomach breaks food down into a liquid mixture.
  • The small intestine digests food further and absorbs nutrients. What is left is passed on to the colon as liquid waste.
  • The large intestine (colon) absorbs water, salt, and minerals from the waste, forming a solid stool.
  • The rectum stores stool until a bowel movement occurs.
  • The anus is the opening where stool leaves the body.
  • The liver makes bile that helps digest fat.
  • The gallbladder stores bile.
  • The pancreas makes enzymes that help in digestion.

If you’re looking for advanced, comprehensive GI patient care, look to Hillmont GI. To schedule your appointment, call us at 215-402-0800. For your convenience, you can use our online form.

Hillmont G.I. provides complete care for wide range of GI conditions, which include Barrett’s esophagus, bile duct disorders, celiac disease, chronic diarrhea or constipation, chronic liver disease, cirrhosis, colon & colorectal cancer, Crohn’s disease, diverticulosis & diverticulitis and other gastrointestinal disorders.

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