Biology: Lymphatic System Flashcards
what are the two semi-independent parts of the lymphatic system
meandering network of lymphatic vessels
lymphoid tissues and organs scattered throughout the body
what does the lymphatic system do
returns interstitial fluid and leaked plasma proteins back to blood
lymph
interstitial fluid once it has entered lymphatic vessels
blood plasma
watery part of human blood
interstitial fluid
the fluid surrounding the cells of the body
lymph fluid
found in lymph vessels
lymphocytes
protect the body against antigens
what is in the lymphatic system
lymph vessels
lymph nodes
organs
what are the lymph organs
bone marrow
lymph nodes
spleen
thymus
True or false the lymphatic vessels allow the fluid to flow both ways
no, one way, valves keep it going one way
how does the lymph transport
pulsations of nearby arteries
contractions of smooth muscle walls of the lymphatics
what are the lymph nodes two basic functions
filtration-macrophages destroy microorganisms and debis
immune system activation- monitor for antigens and mount an attack against them
what are the functions of the spleen
site of lymphocyte proliferation
immune surveillance and response
cleanses the blood takes out old and defective rbc
lymphoma
a group of cancers that affect the cells that play a role in the immune system and primarily represents cells involved in the lymphatic system
