Chapter IIReview of LiteraturesIn this chapter, you will be served by the answers of questions number 1 and 2 of the research question, that is, the definition of kidney in human excretion system and salty foods. Most people do not feel that when she consumes a food can cause a disruption in the system that exists in their body. Most of them when consuming food have no dietary restrictions or constraints. But otherwise, there are some people who even when consuming food, their bodies don't accept or distracted at work their body systems. As with any mengonsumi salty foods that can cause disruption of system excretion in human body. Before discussing the deeper, the author will expose things that are related to System i.e. renal excretion in humans.2.1 Definition of human Excretory SystemEksresi is the process of residual substances are metabolic expenditure either liquid and gas substances. The remaining substances substances the rest of it in the form of urine (kidneys), sweat (skin), biliary (liver), and CO2 (lungs). These substances must be removed from the body because if not expelled would disrupt even poison the body. On the discussion of this paper, the authors will better explain in detail the system of excretion in humans, the kidneys. 2.1.1 the kidneys The kidney is one part of the system for excretion in humans. The kidneys are the organs of excretion in vertebrates in the shape resemble nuts. As part of the urinary system, kidney function to filter out impurities (especially urea) from blood and dispose of it along with water in the form of urine. The branch of medicine that studies the kidneys and the ailment is called Nephrology. The kidneys have several parts, parts of the kidney for excretion in the tool are as follows:Cortex: is part of the kidney that there are body-malpighi chart (the glomerulus and bowman kapsula), proximal kontortus tubule, distal tubules and kontortus.Nefron: is where the filtering blood. In the kidney, there is more than 1 million fruit nefron. 1 nefron consists of the glomerulus, bowman kapsula proximal tubules, kontortus, curved henle, distal kontortus tubule, and kolektivus tubules.Medulla: consists of 9 to 14 are pyramid-shaped part. Inside are arcing henle and kolektivus tubules.Pelvis: is the site of bermuaranya tubules where urine is temporary shelter will be channeled towards the bladder via the ureters and removed from the body through the urethra.Glomerulus filtration: the blood which will filter the water, salt, glucose, amino acids, and urea. Generate the primary urine.Kapsula bowman: is a kind of bag/capsule that encloses the glomerulus. Kapsula bowman was discovered by Sir William Bowman.Proximal kontortus tubule: is where absorption of return/reabsorption of urine primer that absorbs water, salts, glucose, and amino acids. Generate a secondary urine.Arch of henle: liaison between the proximal kontortus tubule with distal kontortus tubule.Kontortus distal tubules: the place to release substances that are not useful anymore or excessive urine into the secondary. Produce urine.Kolektivus tubules: Is long narrow tubes in the kidney that accommodate the urine from nefron, disposal into the pelvis toward the bladder. On the above explanation can we pull the conclusion that the kidney has a part. Besides the kidney excretion of vertebrate organ is shaped similar to a nut that serves to filter the impurities (especially urea) from blood and dispose of it along with water in the form of urine. As for the part the most important part in the kidney. The following is an explanation of the most important parts in the kidneys:1. Diaphragm (not part of the kidney, but rather part of the respiratory system in humans).2. adrenal glands are triangle-shaped endocrine glands located on top of the kidneys (ad, "near" or "at" + renes, "kidneys"). These glands are responsible for stress response on the setting on the synthesis of corticosteroids and catecholamines, including cortisol and adrenaline hormone.3. The Kidney consists of 2 pieces. The picture above shows the position of the kidneys in our stomach.4. renal Artery is the artery that serves to bring blood into the glomerulus of the kidney filtered in.5. the renal Vein is a vein which serves to carry blood out of the kidney inferior cava vein then headed back to the heart.6. the inferior cava Vein (the large vein under) are blood vessels that receive blood from the body and legs. Blood is carried by the blood vessels of this type contain a lot of CO2.7. Abdominal Aorta is the largest artery in the abdominal cavity or abdominal cavity. As part of the aorta, abdominal aorta is a continuation of the aorta descendens.8. The Ureter is a cylindrical muskuler channels that carry urine from the kidneys leading to the bladder.
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