What are the functions of
The Excretory System?
The primary function of the excretory system is to
- Get rid of wastes
- Eliminates useless by-products excreted from cells
- Eradicates harmful chemical build-ups
- Maintains a steady, balanced chemical concentration
What are the
Lungs' Role?
Lungs are two-sponge like organs localized in each side of the thorax. They are constituted by pulmonary alveoli. They are not responsible for converting oxygen into carbon dioxide, but to maintain life supporting levels of these two gases in blood stream by excreting the extra carbon dioxide and keeping a regular supply of oxygen. Each and all organism's cells can take the oxygen through passive diffusion from the bloodstream and use it in its own metabolism, thus producing carbon dioxide that will be further excreted when passing through alveoli circulation.
What is the
Skin's Role?
The skin is another part of the system, containing sweat that help regulate the concentration in one’s body while also keeping him or her cool. The salt helps evaporate the water, cooling off the skin. Sweat is excreted through sweat glands. There are two types of sweat glands: Eccrine sweat glands and Apocrine sweat glands. The basic purpose of skin is to provide a waterproof, protective, covering for the body's complex internal environment. The skin also plays a key rules in helping to maintain the circulatory and nervous system.
What is the
Eccrine's Role?
The eccrine glands secrete mostly water and salt and are used by the body for temperature control. These glands are located all around the body but are most profuse around the soles of the feet, palms of the hands, and the forehead. They look like coiled tubes, spiraling towards the exterior of the skin.
What is the
Liver's Role?
The liver is a vital part of the excretory system, and the human body. It regulates glycogen storage, plasma protein synthesis, and drug detoxification. The liver secretes bile, a base used for breaking down fats. Therefore, it helps get rid of unneeded wastes in the body. It changes toxic ammonia, which is a poisonous gas , to urea, a harmless fluid. The kidney filters urea(a mix of sugar and waste) into a liquid called urine. The liver is the largest gland in the body.
What are the
Kidneys' Role?
Liquid waste is removed from the body through the kidneys. Located beside the spine in your back within your ribcage, the kidneys are small (about 10 centimeters long) reddish-brown organs that are shaped like beans.
During circulation, blood passes through the kidneys in order to deposit used and unwanted water, minerals, and a nitrogen-rich molecule called urea. The kidneys filter the wastes from the blood, forming a liquid called urine. The kidneys funnel the urine into the bladder along two separate tubes called ureters. The bladder stores the urine until muscular contractions force the urine out of the body through the urethra. Each day, your kidneys produce about 1.5 liters of urine. All of it needs to be removed from your system. This occurs through urination.
What is the
Bile's Role?
Bile is a greenish or yellowish substance secreted by the liver used for breaking down fats, ethanol, and acidic wastes. It’s composed of water, cholesterol, lechithin, bicarbonate ions, bile salts, and pigments. Bile is a strong basic substance, classified as alkaline. It is released through bile ducts in the liver. A digestive chemical that is produce in the liver, stored in the gall bladder, and secreted in the small intestine.
What is the
Large Intestine's Role?
The large intestine, or the colon, is the last part of the excretory system. It is the organ that removes solid waste from the body. It’s function is not only to remove solid waste but to collect water from the waste that can be reused. It is part of the alimentary canal, a channel that flows through vertebrate animals. It is about 6 to 7 meters long and processes, transports, and excretes solid wastes.
