Lecture Notes: Urinary System Study Guide Rated A+

Which structure is NOT part of the nephron? a. renal papilla b. proximal tubule c. distal tubule d. nephron loop (loop of Henle) e. glomerular capsule {Ans: a. renal papilla}perinephric fat {Ans: provides cushioning and insulation to the kidney}The internal urethral sphincter is formed by circular smooth muscle. The external urethral sphincter is derived from voluntary skeletal muscle. a. Both statements are true. b. The second statement is true; the first is false. c. Both statements are false. d. The first statement is true; the second is false. {Ans: a. Both statements are true.}juxtamedullary nephrons {Ans: - their renal corpuscle lies near the corticomedullary junction - their long nephron loops extend deep into the medulla}renal sinus {Ans: an internal space of the kidney where the hilum continues}fibrous capsule {Ans: in direct contact with the outer surface of the kidney}filtration {Ans: water and some solutes move into capsular space of renal corpuscle = filtrate}What are the 3 processes of the nephron? {Ans: - filtration - tubular reabsorption - tubular secretion}male urethra {Ans: - longer (less UTI's) - 2 functions: urine & semen}podocytes {Ans: - cells in the Bowman's capsule in the