5D

• Excretory System


  The collection of organs and tissues that remove excess, waste materials from the body
• Excrete


  To separate and eliminate waste from the body
• Liver


  A large organ found in the abdomen that is involved in many metabolic processes including the breakdown of toxins
• Urea


  The main nitrogenous product of protein breakdown in mammals. Excreted in urine
• Kidneys


  A pair of bean-shaped organs that are responsible for removing waste substances from the blood and the production of urine
• Urine


  A fluid formed by the kidneys and stored in the bladder. One of the body’s major ways to remove excess water, solutes, and waste substances from the blood
• Urinary Tract


  The series of channels in which urine is produced and excreted from the body
• Filter


  To pass a substance through a porous material
• Reabsorb


  To absorb a substance that has undergone filtration
• Filtrate


  The fluid filtered from blood that passes through the nephron
• Secrete


  To discharge a substance from a cell or tissue
• Renal Arteries


  Arteries that deliver blood from the heart to the kidneys
• Nephron


  A functional unit of the kidney consisting of glomerulus and tubule system through which filtrate passes and urine is produced
• Afferent Capillary


  Incoming capillaries that deliver blood to the glomeruli of nephrons
• Efferent Capillary


  Outgoing capillaries that carry blood away from the glomeruli of nephrons
• Glomerulus


  A network of capillaries that deliver blood to the Bowman's capsule
• Bowman's Capsule


  The first section of the nephron which collects filtered blood from the glomerulus
• Proximal Convoluted Tubule


  The portion of the nephron tubule that lies between the Bowman's capsule and the loop of Henle
• Loop of Henle


  A u-shaped loop of the nephron that recovers water and salts from filtrate
• Distal Convoluted Tubule


  The portion of the nephron tubule that lies between the loop of Henle and the collecting duct
• Collecting Duct


  The final section of the nephron tubule that collects urine and delivers it to the bladder for excretion
• Ureter


  The tube through which urine passes from the kidney to the bladder
• Bladder


  The hollow muscular organ that receives urine from the kidney and stores it for excretion
• Urethra


  The duct through which urine is excreted from the bladder and out of the body
• Lungs


  A pair of organs situated within the rub cage responsible for the process of oxygenation and excretion of carbon dioxide in humans
• Skin


  A thing layer of tissue covering the outer region of the body of vertebrates
• Digestive Tract


  The pathway of organs that food and liquids travel through after being swallowed, leading to digestion and elimination. Also known as the gastrointestinal tract or alimentary canal