Blood & Body Fluids Terms Flashcards
Definition of
Body Fluid (def)
Fluid that supplies cells with nutrients and removes metabolic waste
Definition of
Coagulation defect (def)
Synthesis failure OR
Abnormal molecule production OR
Excessive destruction OR
Coagulation inhibitor presence
Definition of
Reticuloendothelial system (def)
All tissue macrophages, both mobile and fixed
Definition of
Polycythemia (def)
High % haematocrit, resulting in viscous blood that may block cappillaries and small arteries
Definition of
Thrombocytopaenia (def)
Platelet deficienty -> poor clotting
Definition of
Haematopoiesis (def)
Formation of blood cells (RBCs, WBCs) and platelets
Definition of
Attendant ions (def)
Maintain electrical neutrality by pairing with an oppositely-charged ion
Definition of
Thrombocytosis (def)
Excess of platelets -> clot too easily
Definition of
osmolality (def, and reason for preference)
solute concentration in osmol/kg H2O, independent of temperature
Definition of
Rouleaux formation (def)
“train” of erythrocytes, to pass through narrow capillaries
Definition of
Haematocrit (def)
Volume of RBC’s and thin layer (“buffy coat” - platelets & WBCs) after centrifugation
Definition of
isosmotic (def)
Same osmolality
Definition of
Anemia (def)
Low RBC count or low [haemoglobin]
Definition of
osmolarity (def)
solute concentration in
mosmol/L H2O
Definition of
1 osmol (def)
[osmotically active solutes]/unit H2O
