Skip to content
The kidneys filter about 200 liters of blood each day, cleaning all the blood in the body once every 30 minutes.The four primary organs of excretion in the human body are the kidneys, skin, lungs, and liver.Common symptoms of a UTI include a strong and frequent urge to urinate, cloudy or foul-smelling urine, a burning sensation during urination, and fever if the infection reaches the kidneys.Waste products are any unusable or unwanted substances produced during metabolic reactions, whereas excretory products are the specific metabolic wastes that must be eliminated from the body and cannot be stored.The urinary bladder is a muscular bag in the lower abdomen that collects and temporarily stores urine before it is excreted.Willem Johan Kolff is recognized as the Father of Artificial Organs because he invented the first artificial heart and artificial kidney using simple materials like sausage casings and orange juice cans.A human kidney is approximately 7 to 10 centimeters long and 2.5 to 4 centimeters across.Sweating helps regulate body temperature because the evaporation of sweat from the skin surface absorbs heat from the body, producing a cooling effect.Excretion is necessary to prevent the toxic accumulation of metabolic waste products, which can damage cells, alter the internal environment, and disturb ionic balance.Small kidney stones can be easily flushed out of the ureters by drinking large amounts of water.During ultrafiltration, water and nitrogenous wastes are filtered out of the blood as it passes through the capillaries of the glomerulus into the Bowman’s capsule.The kidneys are located in the abdominal cavity, with one on either side of the backbone at the level of the last two ribs.The liver helps remove bile pigments that are formed during the breakdown of exhausted red blood cells.During secretion, remaining salts and urea are actively transported from the surrounding blood capillaries into the nephron tubules to form final urine.The ureters are narrow tubes that carry urine from the kidneys to the urinary bladder.The presence of sugar in urine indicates that the pancreas is not functioning normally, which is a key sign of diabetes.During reabsorption, useful substances like sugars, amino acids, salts, and water are reabsorbed back into the blood from the filtrate.The lungs function as excretory organs by removing gaseous carbon dioxide and water vapour, which are produced during cellular respiration, through exhaled air.
Share
Explore
Answer key
Prepared by: learnloophq@gmail.com
Chapter: 06. Excretory System
Want to print your doc?
This is not the way.
This is not the way.
Try clicking the ··· in the right corner or using a keyboard shortcut (
CtrlP
) instead.