The Immune system: lymphatic system and Immunity

Question 1

describe the function of the lymphatic system

Answer 1

maintains the fluid balance
by returning tissue fluid into the venous blood stream
destroys organic material by antibodies and macrophages

Question 2

what does the lymphatic system contain

Answer 2

lymphoid structures which contain lymphocytes
tonsils, thymus, spleen, bone marrow

Question 3

where are tonsils located

Answer 3

in a protective ring under the mucous membrane in the mouth and back of throat

Question 4

why do tonsils need the ring

Answer 4

helps protect against bacteria

Question 5

describe the function of the thymus

Answer 5

immature lymphocytes mature in fetal thymus
secretes a group of hormones (thymosin) and other regulators that enable lymphocytes to develop into mature T cells

Question 6

describe the function of the spleen

Answer 6

macrophages removes microorganisms from the blood and destroy them by phagocytosis
contains T and B cells