Holes Human Anatomy and physiology Chapter 20 the Urinary system | 61 Questions and Answers(A+ Solution guide)

What is the functional unit of the kidney? - The nephron How many steps are there to forming urine? - 3 What are the 3 steps to forming urine called? - Glomerular filtration Tubular re absorption Tubular secretion What happens in Glomerular filtration? - Blood enters the afferent arteriole moves through the glomerelus, the blood is filtered in the glomerelus, and exits through the efferent arteriole What happens in Tubular re absorption? - In the proximal convoluted tubule, water moves back into the blood stream by osmosis and proteins move back into the blood stream by active transport What happens in tubular secretion? - Substances move from the blood back into the renal tubule and the renal tubule pushes some of them back out What are the over all functions of the urinary system? - Purify the blood Maintain homeostasis by regulation pH Helps control the amount of fluid in your blood What are the organs of the urinary system? - Kidneys ureters urinary bladder urethraWhere are the kidneys located? - Retroperitoneal (behind the peritoneum) How many kidneys are there? - 2 Can you survive with just one kidney? - yes What protects the kidneys? - perirenal fat How long are the kidneys? - 12 cm How wide are the kidneys? - 6cm How thick are the kidneys? - 3cm