Blood physiology
Blood constituents and their functions
Blood Consists of Plasma and Formed Elements a) If blood is centrifuged, the RBCs sink to the bottom of the tube and the liquid plasma forms the top layer. WBCs and platelets form a thin layer between the two. b) The microscopic appearance of formed elements in a smear of blood.
A false-color scanning electron micrograph of human red blood cells (5000×). Red blood cells
Structure of hemoglobin
Erythropoiesis: formation of red blood cells
Types and relative percentages of leukocytes in normal blood
Leukocytes
Blood clotting factors (procoagulants Blood clotting factors (procoagulants )
Processes of hemostasis a) Vascular spasm; b) Platelet plug formation; c) Coagulation.
Scanning electron micrograph of erythrocytes trapped in a fibrin mesh (2700 x). Erythrocytes trapped in the fibrin meshwork of a clot