D. 4) Lymphatic circulation

Question 1

how does circulation begin

Answer 1

blood circulates in blood vessels. in the capillaries some plasma leave capillaries as interstitial fluid. most interstitial fluid returns to the capillaries. some is picked up by lymphatic vessels as lymph

Question 2

how is lymph moved

Answer 2

lymph is returned to the blood near the hear. lymphocytes circulate in the blood and then move into the lymph and return to blood

Question 3

do lymphocytes circulate continuously

Answer 3

do not circulate continuously; they spend most of their time in secondary lymphoid organs