The biological process involved in removing harmful metabolic waste from the body is called excretion (Tomar, 2009, p. 40). Intracellular metabolism allows the body to function properly, but this function works wastefully, which is often unnecessary and harmful. Therefore, it is important for the body to remove these products to prevent injuries. Tomar (2009, p. 40) showed that the most common waste is carbon dioxide, ammonia, uric acid, urea, creatinine, amino acids, various pigments and inorganic salts.
Excretion: The main waste of cellular metabolism is toxic substances including ammonia and nitrogen. Accumulation of ammonia and other waste will kill animals. Therefore, excretion is essential to life. Most animals have an excretion system that can quickly remove ammonia or convert it to less toxic substances that are excreted from the body. The excretion system is different from a complex of organs such as the kidneys that send cells out of the body. Reaction: Animals respond to events in the environment using special cells called nerve cells. In most animals, neurons are bound together to form the nervous system. Some cells, called receptors, respond to sounds, light, and other stimuli. Other neurons process the information and determine how the animals respond. The placement of neurons in the body changes dramatically from door to door
The kidneys emit various wastes by metabolism. These include nitrogenous waste known as "urea" from protein catabolism such as uric acid such as uric acid from nucleic acid metabolism. Formation of urine, which is a function of the kidneys. The accumulation of nitrogenous waste in the urine of birds and some mammals depends on well designed countercurrent growth systems. This requires several independent functions of the nephron function. The first part is a collection tube capillary connection system that provides for circulation of each distal renal tubule. Collection of the catheter system begins with renal cortex and deep medulla. Since Henling is a countercurrent growth system, urine passes the collection tube system through a high sodium concentration gap bone marrow
Among the many functions of the liver, the following is an important memory. · Bile salts and pigments are generated from bilirubin which is a waste of red blood cell destruction and are discharged. · Save blood, glycogen, Vitamin A, D, B 12, and iron. · It can detoxify the digestion power of protein and the final product of the drug. It creates the essential elements of antibody and blood coagulation mechanism. The gall bladder is a pear-shaped pouch that is usually dark green dyed by the bile it contains. It is on the hollow side of the liver (Figure 1-53). Catheter, cystic duct connect the hepatic duct from the liver to form the common bile duct to the duodenum. The gall bladder receives bile from the liver, then concentrates and stores it. When small intestine is stimulated by fat, it secretes bile