Chapter 21 - Blood Flashcards
how much of blood is plasma
55%
erythrocytes
- red blood cells
- lack nucleus
- transports 02
leucocytes
- white blood cells
- have nucleous
- no hemoglobin
- 2 classes (granulocytes and agranulocytes)
thrombocytes
platelet cells
what is plasma
the watery portion of blood
serum
plasma without proteins
albumins
common plasma protein
dark red blood means
not fully oxygenated
bright red blood means
oxygenated
hemoglobin
- can carry 4 oxygen
- 4 protein chains (globins)
- 2 alpha 2 beta
erythrocyte life cycle
- 120 days/ 4months
- broken down in liver and spleen
neutrophils
- granulocytes
- multilobed nucleus
- most common
eosinophils
- granulocytes
- reddish orange
- try to fight parasites
basophils
- granulocyte
- big spikey ball
- secrete histamine and heparin
heparin
blood thinner
monocytes
- agranulocyte
- big
- tranform into macrophages and phagocytize
lymphocytes
- agranulocyte
- smallest
- round nucleus that takes up most of cytoplasm
- natural killer cell
thrombocyte
- platlettes
- no nucleus
- form blood clots
- cell exploding fragments
2 most commonly used blood type systems
- ABO/ type a,b or ab
- Rh/positive or negative
blood types
- 32 different systems
- based on presence of antigens on surface of red blood cells
ABO system
based on presence of surface antigens on RBC’s
Rh typing
based on presence of Rh surface antigen
hormones involved in hemopoiesis
- erythropoietin
- thrombopoietin
- colony
functions of whole blood
- transportation
- regulation
- protection