Haemotology Flashcards
4 main constituents of blood
Plasma
Red blood cells
White blood cells
Platelets
Red blood cells are also called
Erythrocytes
Red blood cells have a lifespan of
120 days
Haemoglobin structure
4 protein chains
1 haemoglobin molecule can carry 4 oxygen
H red blood cell contains over 1 million molecules of haemoglobin
White blood cells are also called
Leukocytes
White blood cells are often characterised as
Granulocytes and agranulocytes
Granulocytes
Neutrophils
Eosinophils
Basophils
Agranulocytes
Lympocytes
Monocytes
Platelets are also called
Thrombocytes
A haemorrhage is
Trauma or injury to blood vessels
Macrocytic anaemia is
When red blood cells are larger than their normal volume
Microcytic anaemia is
When red blood cells are small because they don’t have enough haemoglobin
Normocytic anaemia is
When you have a normal sized red blood cells but you have a low number of them
Hypochromic anaemia is
When red blood cells are paler than normal
Haemostasis is
A balanced interaction of blood cells and the stopping of a flow of blood
What is primary haemostasis
Temporary platelet plug
What is secondary haemostasis
Coagulation, stable clot
Where is antithrombin produced
In the liver
Where is heparin secreted by
Basophils and mast cells
What is fibrinolysis
When the clot dissolves
What is thrombosis
Presence of a blood clot in a blood vessel
Why do we become pale
Because there is not enough oxygen in the blood
What is agglutination
Blockage of vessels
What is haemolysis
Free Hb can block kidney tubules and cause death
Consequences of mismatching transfusion reaction
Agglutination and haemolysis
Function of blood
Transport
Protects
Regulates
