Hematopoietic System Physiology 1 Flashcards
What are the 2 cell types that form blood cells?
Erythrocytes (red blood cells) Leukocytes (white cells)
What are the 3 main plasma proteins?
Albumin
Globulins
Fibrinogen
What is the major blood electrolyte?
Sodium
Where does erythropoiesis take place?
In the bone marrow
Cessation of bleeding is known as what?
Hemostasis
What is role of platelets in hemostasis?
They stick to the injured site causing a platelet plug
Platelets adhere to the collagen in the injured endothelium with the help of what plasma protein?
von Willebrand factor
What makes up a clot?
Platelet plug plus fibrin
What do you call a clot that includes RBCs?
A thrombus
Vitamin K is important for which factors?
II, VII, IX and X
What initiates the intrinsic pathway of the blood coagulation cascade?
Blood coming in contact with exposed collagen of the damaged tissue
What mineral is needed for proper clotting?
Calcium. And vitamin K is an essential vitamin for clotting.
What is the insoluble substance that precipitates out at injury site?
Fibrin
What substance dissolves clots?
Plasmin
What substance cleaves fibrinogen into fibrin?
Thrombin
