Chapter 6 concepts and terms Flashcards
what is the job of white blood cells?
fight infection and disease
what is the job of platelets?
initiate blood clotting by forming clusters with red blood cells
how many liters of blood does an average person have?
5 liters
what is blood made up of?
white blood cells, red blood cells, platelets, and plasma
what makes up the majority of blood?
plasma makes up 55%
what is the smallest of all blood elements?
platelets
define antigen
molecules on outer surface of cell membrane that identify them as friend or foe
define sickle cell anemia
distorted shaped red blood cells which affects its normal function in carrying oxygen
what is the primary function of the lymphatic system?
vessels that pick up excess tissue fluid, cleanses it and returns it to circulatory system
what five organs help make up the lymphatic system?
tonsils, thymus, lymph nodes, lymph vessels, and spleen
what do lymphatic vessels begin as and where does the fluid they transport end up?
begin as lymph capillaries, fill into lymph vessels, and dump into lymphatic ducts
what is the location for the axillary lymph nodes?
armpits
what is the location of the cervical lymph nodes?
neck
what is the location for the inguinal lymph nodes?
groin
what is the location for the mediastinal lymph nodes?
chest