11. The first segment of these tubules is the proximal convoluted tubule. 12. The first segment of these tubules is the proximal convoluted tubule . 13. This will push the medication into the exposed dentinal tubules . 14. Amino acids are reabsorbed by sodium dependent transporters in the proximal tubule . 15. Sodium pumps in the renal tubules operate to reabsorb sodium. 16. They excrete waste through a single pair of malpighian tubules . 17. Atrial natriuretic peptide causes the distal convoluted tubule to secrete more sodium. 18. In addition, the collagen framework of the tubules remains completely intact. 19. Together, two terminal cisternae and a transverse tubule form a triad. 20. Thiazide diuretics also increase calcium reabsorption at the distal tubule .
