2) This is a Point and Click question. You must click on the required structure.

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1 Class: A&P2-1 Description: Test: Excretory Test Points: 144 Test Number: Printed: 31-March-10 12:03 1) This is a Point and Click question. You must click on the required structure. Click on the Bowman's Capsule. 2) This is a Point and Click question. You must click on the required structure. Click on the Proximal Convoluted Tubule.

2 3) This is a Point and Click question. You must click on the required structure. Click on the Decending Loop of Henle.

3 4) This is a Point and Click question. You must click on the required structure. Click on the Acending Loop of Henle.

4 5) This is a Point and Click question. You must click on the required structure. Click on the Distal Convoluted Tubule.

5 6) This is a Point and Click question. You must include an image. Click on the medulla.

6 7) This is a Point and Click question. You must include an image. Click on the Renal Pelvis.

7 8) This is a Point and Click question. You must include an image. Click on the Renal Pyramids.

8 9) This is a Point and Click question. You must include an image. Click on the Renal Columns.

9 10) This is a Point and Click question. You must include an image. Click on the cortex.

10 11) This is a Point and Click question. You must click on the required structure. Click on the Collecting Duct.

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12 12) This is a Point and Click question. You must click on the required structure. Click on the region where all dissolved materials are removed from the blood.

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14 13) This is a Point and Click question. You must click on the required structure. Click on the region where nutrients like sugar and amino acids are reabsorbed into the blood.

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16 14) This is a Point and Click question. You must click on the required structure. Click on the region where large quantities of water are reabsorbed into the blood.

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18 15) This is a Point and Click question. You must click on the required structure. Click on the region where large amounts of salt are reabsorbed into the blood.

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20 16) This is a Point and Click question. You must click on the required structure. Click on the region where you now call the filtered material "Urine".

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22 17) The mucosa of the bladder is comprised of. smooth muscle squamous epithelium transitional epithelium simple columnar epithelium 18) The ureter directly receives urine from the of the kidney. cortex pelvis medulla pyramid 19) In males as well as in females, the external urethral sphincter is made up of skeletal muscle, and is thus under voluntary control. Where is the external urethral sphincter located in males? within the urogenital diaphragm within the penile urethra at the external urethral orifice within the prostatic urethra 20) Which structure is last in the sequence of urine flow?

23 ureter kidney bladder urethra 21) The outermost covering of the kidney is the. cortex medulla pelvis capsule 22) Which structure is the first to collect the urine? pelvis calyx ureter urethra 23) The renal pyramids are located within the. column cortex medulla

24 pelvis 24) The striated appearance of the pyramids is caused by. parallel blood vessels microtubules connective tissue nerve fibers 25) What is the basic functional unit of the kidney? alveolus renal pyramid renal pelvis nephron 26) Which of these is not a function of the kidneys? The kidneys deactivate vitamin D and stimulate the activity of osteoclasts. The kidneys help control the rate of red blood cell production. The kidneys help to regulate blood pressure. The kidneys regulate the composition, volume, and ph of body fluids. 27) The pyramids are areas located within the of the kidney.

25 cortex pelvis capsule medulla 28) The outermost structure of a kidney is the. cortex medulla capsule pelvis 29) The renal corpuscle is comprised of a glomerulus and. proximal convoluted tubule Bowman's capsule loop of Henle distal convoluted tubule 30) Which section of the nephron is after the ascending limb of the loop of Henle? descending limb of the loop

26 proximal convoluted tubule distal convoluted tubule collecting duct 31) The last part of a nephron is the. collecting duct renal papilla distal convoluted tubule glomerulus 32) Which blood vessel conveys blood out of the nephron? efferent arteriole vasa recta peritubular capillary interlobular vein 33) Which blood vessels surround the loops of Henle? vasa recta peritubular capillaries interlobular arteries

27 efferent arterioles 34) Where are most microvilli found? loop of Henle distal convoluted tubule loop of Henle proximal convoluted tubule 35) The fluid in the descending limb of the loop of Henle is relative to the capillaries. isotonic weakly hypotonic strongly hypotonic hypertonic 36) Choose the one trait that does not characterize the structure of a nephron. There are two coiled portions of the renal tubule. The glomerular capsule contains podocytes and slit pores. Blood that will be filtered flows into the glomerular capsule. Several nephron tubules merge to form a collecting duct.

28 37) The structure which receives the filtrate from the glomerulus is the. proximal convoluted tubule distal convoluted tubule Bowman capsule loop of Henle 38) Which vessel directs blood into the glomerulus? renal artery afferent arteriole efferent arteriole peritubular capillaries 39) In which area can the term urine be correctly used? Bowman's capsule collecting duct nephron loop of Henle 40) What is the function of the nephron?

29 maintain blood ph regulate blood pressure control blood concentration all of these 41) Which process is most affected by blood pressure? tubular secretion tubular reabsorption glomerular filtration loop of Henle diffusion 42) Which of the following are not found in the glomerular filtrate? glucose protein uric acid creatinine 43) Tubular reabsorption occurs from the nephron tubules into the.

30 loop of Henle peritubular capillaries renal corpuscle renal pyramid 44) Most tubular reabsorption occurs at the. loop of Henle distal convoluted tubule proximal convoluted tubule glomerulus 45) Which of the following occurred by active transport? albumin in the urine creatine in the urine reabsorption of water at the proximal tubule reabsorption of amino acids 46) The countercurrent multiplier mechanism occurs at the. proximal convoluted tubule

31 loop of Henle distal convoluted tubule collecting ducts 47) Renal secretion of a compound usually occurs from the into the distal convoluted tubule. loop of Henle glomerulus vasa recta peritubular capillaries 48) Which of these is not usually secreted by the kidneys? creatine creatinine H+ penicillin 49) Most small proteins are reabsorbed by. active transport

32 osmosis facilitated diffusion pinocytosis 50) Where does most selective reabsorption occur? loop of Henle glomerulus distal convoluted tubule proximal convoluted tubule 51) Which muscle metabolism waste product is eliminated by the kidneys? urea uric acid creatine creatinine 52) Which of these has the highest concentration in the urine? glucose

33 sodium uric acid phosphate 53) Which ion is reabsorbed in exchange for sodium? chloride potassium calcium magnesium 54) What is the average glomerular filtration rate? 10L per day 180L per day 1,500 ml per day 1 ml per minute 55) Which of the following is usually not found in the urine? magnesium

34 urea uric acid glucose 56) How much urine is formed in 24 hours? 12 liters 100 ml 1.5L 3,000cc 57) How much of the cardiac output passes through the kidneys? 10% 25% 50% 65% 58) The function of the countercurrent multiplier is to. increase the concentration of NaCl

35 decrease the concentration of NaCl change the blood levels of potassium conserve potassium 59) The concentrations of substances in the plasma, in the glomerular filtrate, and in urine differ in what way? Plasma contains the most water, glomerular filtrate contains less water, and urine contains the least. Plasma and glomerular filtrate are virtually identical, but urine contains proportionately more waste products. Plasma differs from glomerular filtrate and urine, which have virtually identical concentrations of substances. All three have the same concentrations of nutrients and waste materials, but differ in the amount of proteinaceous material they contain. 60) Which force favors filtration? glomerular capillary hydrostatic pressure capsular hydrostatic pressure glomerular capillary osmotic pressure

36 capsular osmotic pressure 61) Which factor does not affect glomerular filtration rate? blood pressure osmotic pressure of the glomerular filtrate plasma osmotic pressure concentration of leukocytes in the blood 62) Juxtaglomerular cells of the juxtaglomerular apparatus secrete when. angiotensin-converting enzyme; blood pressure increases potassium; chloride concentration declines renin; blood pressure drops atrial natriuretic peptide; blood volume drops 63) Tubular reabsorption is responsible for retaining nutrients the body requires. Most tubular reabsorption occurs in the where microvilli, and their numerous carrier proteins, increase the surface area available for reabsorption.

37 distal convoluted tubule proximal convoluted tubule collecting duct nephron loop 64) Renin acts on to convert it to angiotensin I. angiotensin II angiotensinogen ACE aldosterone 65) The targets of angiotensin II are blood vessels and. nerves adrenal cortex adrenal medulla kidney nephron

38 66) The kidney secretes for the purpose of stimulating bone marrow activity. renin aldosterone erythropoietin somatomedin 67) Which area actually secretes renin into the blood? macula densa juxtaglomerular apparatus juxtaglomerular cells cortical nephron 68) The kidney secretes, which is an enzyme-hormone that raises blood pressure. aldosterone renin

39 angiotensinogen angiotensin II 69) The action of aldosterone is to increase. sodium elimination sodium reabsorption potassium reabsorption chloride excretion 70) What affect does ADH have on urine output? minimal increases decreases maintains 71) Where does ADH have its greatest effect?

40 loop of Henle proximal convoluted tubule distal convoluted tubule glomerulus 72) Within the renal tubule, two hormones play a role in determining the final volume and sodium concentration of the urine. The hormone regulates sodium reabsorption, while regulates water reabsorption. aldosterone; antidiuretic hormone (ADH) cortisol; atrial natriuretic peptide renin; angiotensin II antidiuretic hormone (ADH); epinephrine

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