Blood and hemostasis
Blood transports respiratory gases, nutrients and signals while supporting immune surveillance and limiting bleeding. Hemostasis relies on coordinated vessels, platelets and soluble proteins.
Open interactive lesson & self-check ↗Blood and hemostasis — learning map
Original conceptual SVG · scalableOriginal schematic relationship map for this topic; relationships are organized for study, not intended as an anatomical depiction or a diagnostic algorithm.
Plasma and cells
Plasma contains water, electrolytes and proteins; erythrocytes carry hemoglobin, leukocytes participate in immunity and platelets assist clot formation.
Primary hemostasis
Vascular injury exposes adhesive substrates; platelets adhere, activate and aggregate to form an initial hemostatic plug.
Secondary hemostasis
Coagulation reactions generate thrombin, which converts fibrinogen to fibrin and reinforces the developing clot.
Fibrinolysis and control
Anticoagulant pathways and plasmin-mediated fibrin degradation help confine the response to the injured region and restore patency.
Reference and next reading
Explore the original curriculum and publisher-hosted resources for full-depth reading; this note is an original schematic introduction, not an exhaustive chapter.