4.2 Anatomy of the Blood Part 2 Flashcards
What do red blood cells need to do in order to be released into the blood?
loose nucleus
synthesize hemoglobin
How long do red blood cells live?
120 days
Where are red blood cells destroyed?
liver
spleen
What occurs when red blood cells are destroyed?
hemoglobin is released so the iron can be recycled
What happens to the heme portions of red blood cells when they are destroyed?
undergo chemical degradation and are excreted by the liver in bile
What are white blood cells also known as?
leukocytes
How do white blood cells differ from red blood cells?
larger
larger nucleus
lack hemoglobin
How does the body respond when microorganisms enter the body due to injury?
inflammatory response
What are features of the inflammatory response?
swelling
reddening at the injured site
What causes the swelling and redness of the inflammatory response?
increase in blood flow to the site
What is the function of the white blood cells?
destroy foreign material
What is pus?
thick yellowish fluid
What does pus contain?
dead white blood cells that have fought infection and undergone cell death
What are the three groups of white blood cells?
granulocytes
agranulocytes
lymphocytes
What is a feature of granulocytes?
they have granules in the cytoplasm
What are the types of granulocytes?
neutrophils
esoniphils
basophils
What are the types of lymphocytes?
T cells
B cells
What are platelets also known as?
thrombocytes
What is coagulation?
blood clotting
What is the main function of platelets?
coagulation
