The liver is a vital organ in the human body, located in the upper right portion of the abdomen. It plays a crucial role in various physiological processes, including metabolism, detoxification, and regulation of biochemical pathways.
The liver is divided into lobes and is composed of hepatocytes, which are the main functional cells of the liver. It is supplied with blood from the hepatic artery and the portal vein, and it has a complex system of bile ducts that aid in the secretion of bile.
Regulation of Blood Clotting: The liver synthesizes proteins necessary for blood clotting.
Common Liver Disorders
Hepatitis:Inflammation of the liver, often caused by viral infections (e.g., hepatitis A, B, C).
Cirrhosis: Scarring of the liver tissue due to long-term damage, leading to impaired liver function.
Fatty Liver Disease: Accumulation of fat in the liver, often associated with obesity and excessive alcohol consumption.
Liver Cancer: Development of cancerous cells in the liver, which can be primary or secondary (metastatic).
Study Guide
When studying the liver, it is important to understand its anatomy, functions, and the impact of various disorders. Here are some key points to focus on:
Learn the structure and function of hepatocytes, hepatic lobes, and the blood supply to the liver.
Understand the role of the liver in metabolism, detoxification, and the production of bile.
Explore the storage functions of the liver, including the storage and release of glycogen.
Examine the impact of common liver disorders on the overall function of the liver and potential treatment options.
Consider the importance of maintaining a healthy lifestyle to support liver function and prevent liver diseases.
By mastering these concepts, you will gain a comprehensive understanding of the liver and its significance in maintaining overall health and well-being.
Energy - A. Energy is involved in all physical and chemical processes. It is conserved, and can be transformed from one form to another and into work. At the atomic and nuclear levels energy is not continuous but exists in discrete amounts. Energy and mass are related through Einstein's equation E=mc 2 . B. The properties of atomic nuclei are responsible for energy-related phenomena such as radioactivity, fission and fusion. C. Changes in entropy and energy that accompany chemical reactions influence reaction paths. Chemical reactions result in the release or absorption of energy. D. The theory of electromagnetism explains that electricity and magnetism are closely related. Electric charges are the source of electric fields. Moving charges generate magnetic fields. E. Waves are the propagation of a disturbance. They transport energy and momentum but do not transport matter.
Relate temperature to the average molecular kinetic energy.