Which white blood cell is most effective against parasitic infections?
eosinophils
Blood that has clotting proteins removed is termed
serum
The extrinsic pathway of coagulation is initiated by the
release of tissue factor (Factor III) by damaged endothelium
Most of the plasma proteins required in the coagulation process are produced by the __________
liver
Non-specific immunity, such as phagocytosis, is a function of which blood cells?
neutrophils, eosinophils, and monocytes
Red blood cell production is regulated by the hormone
erythropoietin
Erythropoiesis is stimulated when
blood flow to the kidney declines
The disease sickle cell anemia is an example of what can happen if
a gene for adult hemoglobin is abnormal
Excess iron is stored in the liver and spleen as
hemosiderin and ferritin
Blood volume represents about ________ percent of a person's body weight.
7
Neutrophils are
able to exit capillaries
able to destroy bacteria
able to make hydrogen peroxide
attracted to complement-coated bacteria
The common pathway of coagulation begins with the
activation of Factor X and production of prothrombin activator
Which of the following would you expect to see in increased numbers in a peripheral blood sample after donating a unit of blood?
reticulocytes
What is the function of platelets?
They adhere to collagen beneath endothelium
The process of fibrinolysis
dissolves clots
An important function of platelets is to __________
transport clotting factors
You have spent 24 hours traveling from the U.S to New Zealand, on quite a few airplanes with many stops. Because of the stress, changes in time zones, and short blocks of time between planes, you find yourself tired with a headache when you arrive. You
are severely dehydrated. A hematocrit value of your blood would be ________ than normal because ________.
higher
you have less blood plasma volume
The formed elements of blood consist of __________.
red blood cells
platelets
white blood cells
When RBC are broken down, which part forms bilirubin and urobilin?
heme of hemoglobin
Which of the following WBC is most frequently found in blood and the first WBC to reach the site of infection?
neutrophil
Which of the following WBC is involved in immunity, antigen-antibody mediated protection?
lymphocyte
Antigens for ABO blood group are present on
erythrocytes
Which of the following white blood cell becomes larger and modified to form macrophage?
monocytes
All of the following are proteins present in blood plasma
fibrinogen
albumin
globulin
Mast cells are actively involved in allergic reactions. From which cells are they derived?
basophils
Hematocrit refers to
% of RBC in blood
Anemia is due to
lack of bone marrow activity
lack of intrinsic factor produced by stomach
excessive bleeding
The specific part of hemoglobin responsible for carrying oxygen is the
iron of hemoglobin
Hemoglobin has binding sites for oxygen and carbon dioxide
