Blood And Thermoregulation Flashcards
Draw a diagram explaining how hemocytoblasts differentiate into the various components of blood.
What is hemostasis?
Hemostasis is a process to prevent and stop bleeding.
What are the groups of plasma proteins? State their functions.
Albumins (most abundant) provide oncotic pressure and a medium for transportation.
Alpha globulins transport molecules like alpha-1 trypsin.
Beta globulins are inactive precursor proteins (proteases).
Gamma globulins are antibodies.
Fibrinogen is a factor in blood clotting.
What is the importance of the oncotic pressure provided by plasma proteins?
Plasma proteins are important in the distribution of ECF between vascular and interstitial compartments so they’re
important in the maintenance of circulatory volume.
What are the functions of electrolytes?
Electrolytes maintain the osmotic distribution of fluid between ECF and ICF. They are the primary drivers of action potentials, directly controlling membrane excitability. Electrolytes like HCO3- and H+ buffer blood pH and help maintain neutrality.
What are the types of leucocytes which are granulocytes? State their functions.
Neutrophils phagocytize bacteria.
Eosinophils kill parasitic worms, destroy antigen-antibody complexes and inactivate inflammatory chemicals of an allergy.
Basophils release histamine (and other anti-inflammatory mediators)
What are the types of leucocytes which are agranulocytes? State their functions.
Lymphocytes react to immune response by direct cell attack or antibodies.
Monocytes perform phagocytosis and develop into macrophages in tissues.
