Why are the lymphatic vessels closely associated with the capillary beds? a. all of the interstitial fluid that leaks from the lymphatic vessels is picked up by the capillaries. b. some of the interstitial fluid that leaks from the lymphatic vessels is picked up by the capillaries. c. all of the interstitial fluid that leaks from the capillaries is picked up by the lymphatic vessels. d. some of the interstitial fluid that leaks from the capillaries is picked up by the lymphatic vessels.

Decreased flow rate increases the rate of rise in oncotic pressure in the peritubular capillaries, thereby increasing the amount of sodium that is reabsorbed. Sodium reabsorption hormonally altered when peritibular capillary osmolality is high.  DH is released from posterior pituitary (driven by plasma osmolality and/or volume status). ADH activates Na,K,2Cl- channel in TAL to increase Na/H2O reabsorption.  ADH activates NCC and ENaC channels in distal nephron as well.  ADH causes aquaporin insertion in the collecting duct membrane from H20 reabsorption