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A:
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The excretory system consists of:
A rectum, lungs, skin and kidneys
B rectum, liver and kidneys
C lungs, liver, skin and kidneys
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Solved in 2 steps
- Figure 41.5 Which of the following statements about the kidney is false? The renal pelvis drains into the ureter. The renal pyramids are in the medulla. The cortex covers the capsule. Nephrons are in the renal cortex.Which of the following does not contribute to the process of filtration? (a) active transport by epithelial cells lining renal tubules (b) large surface area for filtration (c) low permeability of glomerular capillaries (d) high hydrostatic blood pressure in glomerular capillaries (e) podocytesFigure 41.6 Which of the following statements about the nephron is false? The collecting duct empties into the distal convoluted tubule. The Bowman’s capsule surrounds the glomerulus. The loop of Henle is between the proximal and distal convoluted tubules. The loop of Henle empties into the distal convoluted tubule.
- Which of the following does not contribute to the high salt concentration in the interstitial fluid of the kidney medulla? (a) active transport of sodium from the upper part of the ascending limb (b) diffusion of salt from the ascending limb of the loop of Henle (c) reabsorption of salt from various regions of Bowmans capsule (d) counterflow of fluid through the two limbs of the loop of Henle (e) diffusion of urea out of the collecting ductReabsorption depends on _________. a. osmosis across the nephron wall b. active transport of sodium across the nephron wall c. a steep solute concentration gradient d. all of the aboveBlood pressure forces water and small solutes out of blood and into nephrons during ________. a. glomerular filtration c. tubular secretion b. tubular reabsorption d. both a and c
- e The excretory system regulates the volume and composition of body fluids by removing wastes and returning useful substances to the body. Some of the characteristics of the excretory organs are given below. 1. Carries urine to the bladder 2. Stores urine 3. Eliminates urine from the body 4. Composed of nephrons Put the numbers of the above characteristics in order, so they correspond to the urinary bladder, the ureters, the kidneys, and the urethra. (Your answer should look like 1234, but that isn't the right order.) Answer: Next page OFDescribe the location of the following organs. Kidneys Ureters Urinary bladder UrethraWhich of the following is NOT a function of the excretory system? * Filtration of wastes from the blood. Secretion of ADH from the collecting duct. Maintaining pH balance by secretion of H+ ions. Osmoregulation via sweating. Releasing carbon dioxide waste from the lungs.
- Which of the following is TRUE with regards the kidney? * Superior to the kidney is a gland that secretes aldosterone. The concave surface of the kidney is lateral. The renal medulla is more superficial than the renal cortex. The kidneys are intraperitoneal. The left kidney sits slightly lower than the right.The main function of the nephron loop is to: A. Eliminate acid B. Recover glucose and salt from the tubule fluid C. Create a high osmotic concentration in use extracellular fluid of the renal medulla allowing water recovery D. Secrete drugs scubas penicillin This is not and will not be gradedCharacterize the roles of each of the parts of the urinary system. (Kidneys, nephrons, ureters, urinary bladder, and urethra). Trace the flow of blood through the kidney and describe how blood is filtered in the kidney nephron.
