What organs excrete each of the four substances, Salt, Water, Carbon dioxide, and Urea of a human body?
455624
Salt - kidneys, skin (sweat glands)\nWater - kidneys, skin (sweat glands), lungs (as water vapor)\nCarbon dioxide - lungs\nUrea - kidneys
356130
im studying the digestive system right now, so i'll have a go at this question (u may want to chec accuracy).\nthe cell gets the carbon it needs via the blood supply. when we eat, all the nutrients are broken down and molecules such as hydrogen, oxygen and carbon are filtered into the blood stream so that they can be passed on to all the cells in th body.\n\ndoes that help?
180677
This is a rather complex process. First of all urea are made in a process called deamination, this occurs in the liver. Excess proteins that have been eaten by the human are broken up and converted into urea. \n This then enters the blood and is transfered throughout the body(even our sweat contains urea!).\nAs blood passes into the kidneys, it's filtered there so urea is separated from the rest constituents of blood.\nFrom the kidneys urea,dissolved in water( now called urine) is transfered via the ureters to the bladder where it is stored until excreted.
438401
kidney, specifically the nephron
746922
Most of the human body is made up of water, H2O, with cells consisting of 65-90% water by weight. Therefore, it isn't surprising that most of a human body's mass is oxygen. Carbon, the basic unit for organic molecules, comes in second. 99% of the mass of the human body is made up of just six elements: oxygen, carbon, hydrogen, nitrogen, calcium, and phosphorus.\n\nOxygen (65%) \nCarbon (18%) \nHydrogen (10%) \nNitrogen (3%) \nCalcium (1.5%) \nPhosphorus (1.0%) \nPotassium (0.35%) \nSulfur (0.25%) \nSodium (0.15%) \nMagnesium (0.05%) \nCopper, Zinc, Selenium, Molybdenum, Fluorine, Chlorine, Iodine, Manganese, Cobalt, Iron (0.70%) \nLithium, Strontium, Aluminum, Silicon, Lead, Vanadium, Arsenic, Bromine (trace amounts)
24588
CO2 is carried through the blood in the body to the lungs to be exhalated.
453526
There are two organ systems that work in conjunction with each other to provide tissues with oxygen and remove carbon dioxide.  Those are the respiratory and the circulatory system (the major organs of these systems being the lungs and the heart respectively).\n\nNutrients are provided by the combined actions of the digestive and circulatory system, and wastes are removed through the combined actions of the circulatory and excretory systems.
717618
The kidneys filter the blood, produce urine, and reabsorb vital electrolytes.  The spleen destroys old blood cells and plays a part in the immune system.
130778
The respiratory system and the cardiovascular system\n\nto put oxygen in the blood and take C02 out, to pump the blood respectively
563473
Homeostasis \nHomeostasis is the physiological process by which the internal systems of the body (e.g. blood pressure, body temperature, acid-base balance) are maintained at equilibrium despite variations in the external conditions. \nThe body can maintain the fluid levels using the kidneys, these organs filter out harmful chemicals and excess liquid into the bladder from which the urine is then expelled.  Body temperature is regulated somewhat by the skin, example, if you are hot you begin to sweat and this helps to cool the body, if you are cold you shiver this helps to raise, the body temperature.
781072
useful substances enter and waste products exit of course.\nuseful substances include glucose, oxygen, amino acids, etc.\nwaste products would be carbon dioxide, urea, etc.
742035
excretory-filters the blood of toxic nitrogenous wastes from amino acid digestion, specifically urea, ammonia and uric acid in verbebrates. Kidney primarily does this job. It also maintains electrolyte and water homeostasis\n\nnervous- transmission of motor, sensory and integrative nerve impulses and action ptotentials throughout the body via brain, spinal cord and nerves to assist in homeostasis of many systems\n\nendocrin- production and secretion of hormones to be sent thru the blood to all cells of the body; works with the nervous system to maintain many forms of homeostasis\n\ndigestive- ingestion, mechanical and chemical digestion and absorption of nutirents (proteins, fats, carbs converted to amino acids, glucose, fatty acids) so that cells can utilize the smaller molecules for human metabolism, growth and misc homeostatic mechanism; digestive system will then eliminate any non-digested, non-absorbable wastes.
766541
Circulatory - keeps the blood and nutrients circulating to all vital organs\nRespiratory - provides oxygen to the blood system, and eliminates CO2\nNeurological - controls the other systems\nDigestive - provides the nutrients circulated by the blood system, and excretes the waste products, ridding the body of toxins\nRenal - maintains healthy fluid balance so that the blood can flow through the body with ease, also eliminates waste products, ridding the body of toxins
586328
First blood is sent into the kidneys to be processed through the nephrons of the kidney which take out substances that are not wanted in the blood such as excess water, salts, amino acids and uric acid which becomes the urine. Next the urine is sent through the ureters to the bladder where when full a signal is sent to the brain that gives that feeling that you need to go. It then goes through the urethra into the toilet or where ever you might be peeing.
496495
Urination, fecal excretion, sweating, and exhaling.
209214
1.- cleanses your system, your kidneys, that's why\nyou urinate.\n\nYou take things in, through the nose by breathing, the mouth by eating, etcetera. Your body needs water and other fluids to process this through your kidneys and clean your body out.\n\n2.- moisturizes the tissues within your body, makes them function adequately. For example the immunological system. The cells and antibodies require to synapse, and this requires energy, one of which the carriers for is water.
101500
urine contains urea, which is a nitrous acid that is digested out of the bloodstream. when the urea mixes with the toilet water, it foams.