GENERAL HISTOLOGY

Detailed explanation-1: -Mini-valves, which let lymph flow into the capillaries but not out of them. Anchoring filaments, which contain elastic fibers and attach the endothelial cells to fibroblast cells in connective tissue.

Detailed explanation-2: -The correct answer is (a) They empty into lymphatic collecting vessels. The lymphatic capillaries drain the lymph into the lymphatic vessels. These lymphatic vessels finally join the lymph nodes. Lymph capillaries have more proteins than blood capillaries.

Detailed explanation-3: -When the pressure in the interstitial space is less than the pressure in the lymphatic capillary, the endothelial minivalves are pushed shut, keeping the lymph inside. Once the lymph is inside the lymphatic capillaries, it travels through bigger and thicker-walled vessels, then trunks, and then ducts.