Excretion Organ
Excretion is the process of spending one substance from the body. Excretion is the process of spending the rest of metabolism like urine, sweat, and breathing. There are 4 tools excretion in humans, kidneys, skin, liver, and lungs. Kidneys secrete urine, skin secretes sweat, heart secretes bile together with urine, and the lungs remove carbon dioxide and water vapor. Kidney Kidney is one excretion organ in humans are located in the rear of the abdominal cavity , the right of the left pubic bone . Kidney consists of three layers. Outer part called the cortex (kidney skin), underneath there modularly (marrow kidney) , and on the inside a cavity called the renal pelvis (kidney cavity). Kidney function associated with renal excretion system is to filter the blood and excreted in the form of urine. There are three stages the formation of urine filtration (blood filtering), reabsorption (reabsorption of useful substances in the urine), and augmentation (urine collection). Urine from the k...