lymphatic system Flashcards
study guide for lecture exam #2
what are the main functions of the lymphatic system?
- fluid balance
- transport fats
- immune system regulation
what are lymphatic vessels?
where lymph enters the lymph capillaries and merges to become lymph vessels
what are lymph nodes?
masses of lymphatic tissue that remove debris & pathogens from the lymph
what are the 2 lymphatic ducts that drain lymph into venous blood?
right lymphatic duct & thoracic duct
where is the right lymphatic duct located?
on right side of body
where is the thoracic duct located?
on left side of body
name one area that the right lymphatic duct drains lymph from
upper limb
what area of the body does the thoracic duct drain lymph from?
drains lymph from rest of body
what percent of lymph does the right lymphatic duct drain?
25%
what percent of lymph does the thoracic duct drain?
75%
what is the function of the spleen?
breaks down worn out RBC (small reserve of blood), produce lymphocytes
what is the function of MALT?
prevent pathogens from penetrating mucous membrane
what is the function of the tonsils?
recognize, destroy and develop immunity to environmental pathogens