Question

Choose the CORRECT statement about lymphatic fluid (lymph). Select one: a. Lymph is moved through lymphatic vessels by the action of a specialized pump (the lymphatic heart) located in the abdominal cavity. b. It is emptied into the bloodstream directly from the lymph nodes. c. Lymphatic fluid is secreted by the lymph nodes into the lymphatic vessels. d. Return of lymph to circulation prevents blood volume from decreasing extensively. e. Lymphatic fluid re-enters circulation through the bronchial circulation in the lungs.

Answer 1

Return of lymph to circulation prevents blood volume from decreasing extensively.

Lymph is formed from blood and and then it moves through the lymph vessels through different parts of the body. The lymph return to the blood keeping it in a balanced proportion. If lymph doesn't return to the blood the blood volume should have depleted in a big amount.

Lymph fluid is not secreted by the lymph node. Lymph enters the blood through specialised trunks. Lymphatic heart is present in amphibians, fishes etc not in humans. Lymph doesn't enter through the bronchial circulation.