Liver Definition The liver is a vital organ found in humans and other vertebrates. The liver is the dark pink organ in this image: click to play animated GIF The liver performs many vital functions without which humans cannot survive.
Making Digestive Chemicals The liver produces bile, which is a little-known but vital ingredient to the digestive process. Making Energy from Protein Under normal circumstances, the body tries not to digest proteins for energy. Storing Glycogen The liver also serves another purpose that is useful when food is scarce. Producing Hormones The liver produces several chemical messengers that help the body to coordinate its activities.
Answer to Question 1. C is correct. The liver metabolizes protein when it is needed for fuel — not glucose.
Location of the liver
All cells are capable of metabolizing glucose for energy, while protein metabolism requires the liver because it produces toxic byproducts. Answer to Question 2. A, B, and D are common causes of liver failure.
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Answer to Question 3. D is correct. While the liver is primarily located in the right and central upper parts of the abdomen, the path of nerves in the abdomen can sometimes cause liver pain to manifest on the left side, or even in the lower abdomen.
The liver processes this blood and breaks down, balances, and creates nutrients for the body to use. It also breaks down metabolizes medicines in the blood into forms that are easier for the body to use.
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The liver does many important things including:. Makes bile, which helps carry away waste and break down fats in the small intestine during digestion. Changes harmful ammonia to urea urea is one of the end products of protein metabolism that is excreted in the urine. When the liver has broken down harmful substances, they are excreted into the bile or blood.
The Anatomy and Function of the Human Liver
The liver is located under the ribs on the right hand side of the body. It lies just below the lungs, under the top of the diaphragm to which it is attached. The diaphragm is the muscle beneath the lungs which regulates our breathing. The liver is partly protected by the rib cage.
Digestive System | Cleveland Clinic
In fact, it is so tightly packed into the ribcage that a slight impression is often left on the top of the liver. The liver is the largest organ in the body.
It is shaped like a wedge and weighs 1.