Reabsorption III: The Loop of Henle

Practice: Reabsorption in which of the following part(s) of the loop of Henle adds water volume to the renal medulla? (Choose all that apply.)

Practice: Reabsorption in which of the following parts of the loop of Henle adds solute content (salts, etc.) to the renal medulla? (Choose all that apply.)

Practice: Furosemide (brand name Lasix®) is a drug that inhibits the Na⁺/K⁺/Cl^- Cotransporter (NKCC). Which of the following is the expected effect of furosemide treatment on the osmolarity of filtrate at the beginning of the distal tubule (relative to the osmolarity at that point in an untreated nephron)?