Hematology Flashcards
What is yellow bone marrow also known as?
Adipose
What is hematopoiesis?
Production of blood cells
What is a stem cell?
Inmatture blood cell that is able to self renew
What are the 3 major functions of blood?
Transport oxygen, nutrition, hormones and waste
Protect coagulation and infection
Regulate fluid and electrolytes, acid bases, and thermoregulation
What are the 2 major components of blood?
Plasma (serum)
Cells (RBC, WBC, Platelets)
What are RBC’S?
erythrocytes
what are WBC’s?
leukocytes
what are platelets?
thrombocytes
what does erythrocytes (RBC) do?
transport and acid base regulation of oxygen and carbon dioxide
what is erythropoietin?
production of RBC in response to tissue hypoxia
what is hemolysis?
destruction of RBC
what are the two type of WBC?
Granulocytes
Agranulocytes
what are the 3 granulocytes (WBC)?
Neutrophils
Basophils
Eosinophils
what do neutrophils do?
Increase during inflamation and infection
what do basophils do?
Increase duriing inflammation and allergic rx
what do eosinophils do?
Increase during allergic rx or parastie infections
what are the 2 agranulocytes?
lymphocytes
monocytes
what do lymphocytes do?
regulate cellular and humoral immune response
regulate B&T cells
what do monocytes consume?
bacteria
dead cells
tissue
debris
old RBC
what are thrombocytes and what do they originate from?
platelets
stem cells within the bone marrow
what is the clotting process regulated by?
thrombopoietin (production of platelets)
where is normal iron metabolism obtained from?
food and dietary supplements
what carries plasma proteins for iron?
transferrin
what are the normal clotting mechanisms?
vascular injury and subendothelial exposure
platelet adhesion
platelet activation
platelet aggregation
platelet plug fomration
clot retraction and dissolution