CH. 19 AP2 – Blood

Plasma makes up approximately what percentage of whole blood?55 Percent
The following statements about blood are true EXCEPT that __________.The pH is slightly acidic
Plasma is closest in composition tointerstitial fluid
Which of the following is a function of the blood?-defense against toxins and pathogens
-transport of body heat
-transport of nutrients and wastes
-transport of gases
Whole blood for testing in a clinical laboratory is usually collected froma superficial vein
A typical adult hematocrit is45
The most abundant plasma protein is __________.albumin
Plasma proteins essential in body defense are theimmunoglobulins
The plasma protein involved in blood clotting isfibrinogen
What structure binds hemoglobin moleculeoxygen
In adults, the only site of red blood cell production, and the primary site of white blood cell formation, is thered bone marrow.
________ is a condition in which the oxygen-carrying capacity of the blood is reduced.anemia
Pernicious anemia caused by a lack of intrinsic factor is specifically treated byinjections of vitamin B12.
Aged and damaged erythrocytes are broken down by macrophages in thespleen, liver, and bone marrow.
The process of red blood cell production is callederythropoiesis
A person with a type A positive blood can safely receive blood from all of these donors EXCEPT __________.B+
Antigens of the surface of red blood cells are also called ________ and antibodies in the blood plasma are also called ________.agglutinogens; agglutinins
Which of the following combinations may result in the hemolytic disease of the newborn?mother Rh negative, baby Rh positive
The white blood cell type that most rapidly increases in number after a bacterial infection is the __________.neutrophils
White blood cells that release histamine at the site of an injury arebasophils
All of the following are true of neutrophils except that they areimportant in coagulation.
The blood cells involved in specific immunity are thelymphocytes
If a patient has thrombocytopenia, the best therapy is infusion of __________.purified platelets
The function of platelets is to assist in theprocess called hemostasis.
Which of these phases is NOT part of hemostasis?erythropoiesis phase
The common pathway in coagulation ends with __________.conversion of soluble fibrinogen to insoluble fibrin
The enzyme that dissolves fibrin is named __________.plasmin
Most of the protein factors that are required for clotting are synthesized byliver
The extrinsic pathway of coagulation is initiated by therelease of tissue factor (Factor III) by damaged endothelium.
How would removal of calcium ions from a blood sample affect coagulation?Coagulation would be prevented.
A fibrin network that contains trapped blood cells and platelets is called a(n)blood clot.