Anatomy and Physiology of the Circulatory System Flashcards
Primary factor for production of blood cells.
Bone Marrow
Sites for the production of blood cells.
Lymph nodes, Thymus, and Spleen
An adult body that weighs about 68kg or 150lbs. contains approximately 5 liters of blood. True or False
True
45 percent of blood are consists of _________
formed cellular elements
Contain antigens on the surface that determine the individual’s blood type and a variety of other factors specific to that individual
erythrocytes
Form into blast cells, maturing through several stages until they are released into the blood as mature cells.
leukocytes
They are fragments of cells that break off from a large cell metamegakaryocyte, which is found in the bone marrow.
Thrombocytes
55 percent of blood are consists of _________
Plasma
Antibodies that can react with antigens foreign to the individual are found in the patient’s plasma. True or False
True
When the blood is removed from the body, the blood clots, and the liquid portion is called ___________.
serum
The blood cells begin their formation in the bone marrow and lymph nodes as undifferentiated hematopoietic stem cells. True or False
True
Formation of blood cells.
hematopoiesis
Holds oxygen molecules that were absorbed through the membrane as the erythrocytes passed through the lungs.
Hemoglobin
The process of determining if a person will react after a transfusion.
Type and cross-match (T&C)
Classifies WBCs according to the percentage of cell types and part of a complete blood cell count (CBC).
White blood cell differential count
Calculations involving the hemoglobin, hematocrit, and RBCs.
Indices of the RBC
Have a thick wall that helps it withstand the pressure of the pumping heart.
Arteries
When the body gets warm, the capillaries in the extremities dilate (enlarge in diameter) and let off heat. This process then cools the body. True or False
True
Let the blood pass through but closes if the blood tries to flow backward.
Valves
Constantly expanding and contracting and therefore have a thicker, stronger wall.
Arteries
The clot contains all the formed elements intertwined together in a _________.
fibrin mass
Blood that is flowing though the body contains a protein called ____________.
fibrinogen
Once the blood leaves the body, the fibrinogen turns into __________.
fibrin