Chapter 10 Blood Review (Test) Flashcards
(38 cards)
Characteristics of leukocytes
WBC Fight against disease Less than 1% blood volume Have nucleus Kill parasitic worms Involved in immune system
Functions of blood
River of life
Maintain electrolytes transports everything the body needs (waste/protein)
Pathways cells can take in hematopoiesis?
Lymphoid–produce lymphocytes
Myeloid–produce all other cells
All cells in your blood; include RBCs, WBCs, and platelets
Formed elements
Where platelets originate from
Megakaryoctes
WBCs ability to move in and out of blood vessels
Diapedesis
RBCs; most numerous cells, about 45% of formed elements aka hematocrit
Erythrocytes
These stem cells are crated in the red bone marrow
Hemocytoblasts
How is blood type determined?
By antigens on plasma membrane
Cell pieces/fragments
Originate from megakaryoctes
IMPORTANT IN CLOTTING
Platelets
Whitish layer between formed elements and plasma
Buffy coat
Chemicals released by damaged tissue to signal
Positive chemotaxis
How long does clotting occur in hemostasis?
3-6 minutes
Which WBCs are granulated/agranulated?
Granulated: neutrophils, basophils, eosinophils
Agranulated: lymphocytes and monocytes
Components of plasma
Water (90%)
Salts and gases
Fibrinogens, globulins, albumin (proteins)
Blood clot attached to blood vessel wall
Thrombus
Floating clot within vessels, bad when reaches heart or lungs
Embolus
Most common blood type?
O Rh+
Disorder where there is not enough platelets and abnormal bleeding
Thrombocytopenia
Colony stimulating factors; stimulates WBC production
CSF
Universal donor?
O
Universal recipient?
AB
Characteristics of blood
pH of 7.35-7.45
Temp. of 100.4
8% of body weight
5-6 liters
Hereditary bleeding disorder due to lack of any clotting factor
Hemophilia