Term
A hemocytoblast can become a: |
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Definition
a) Erythrocyte; b) Neutrophil; c) Platelet; d) Monocyte;
*all of the above* |
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Term
Which is the role of platelets in hemostasis |
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Definition
a) Swelling and becoming sticky upon contracting collagen; b) Releasing factors (e.g., proteins) that stimulate coagulation; c) Aggregating to form the initial seal of the bleeding wound; ** All of the above ** |
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Term
Which blood factor is most responsible for the occurrence of hemophilia |
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Definition
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Which blood type is called the universal donor: |
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Definition
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Term
Which of the following might trigger erythropoiesis |
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Definition
Hypoxia of EPO-producing cells |
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Term
An individual with blood type AB negative |
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Definition
Can receive any blood type in moderate amounts except that with the Rh antigen |
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Term
All of the following can be expected with polycythemia except |
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Definition
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Term
No visible cytoplasmic granules are present in |
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Definition
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Term
Which of the following is true about blood plasma |
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Definition
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Term
Fred’s blood was determined to be AB positive. What does this mean |
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Definition
There are no antibodies to A, to B, or to Rh antigens in the plasma |
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Term
Which of the following is a precursor of a basophil: |
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Definition
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Term
What organ in the body regulates erythrocyte production |
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Definition
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Term
Choose the correct sequence of proteins involved in the coagulation cascade |
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Definition
Prothrombin activator, thrombin, fibrin |
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Term
Which process in hemostasis is the first step in slowing the blood flow to the wounded area |
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Definition
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Term
Which process in hemostasis is the first step in slowing the blood flow to the wounded area |
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Definition
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Term
Which makes up the greatest percentage of blood |
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Definition
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Term
Hemoglobin carries how many oxygen molecules |
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Definition
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Term
The hormone erythropoietin activates |
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Definition
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Term
Which is the best definition of coagulation |
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Definition
Conversion of blood from a liquid to a gel |
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Term
Choose the correct order of solute concentrations in the plasma, from highest to lowest: |
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Definition
Salts, proteins, hormones |
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Term
Together, leukocytes and platelets comprise approximately what percent of total blood volume. |
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Definition
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Term
The most abundant plasma protein is |
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Definition
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Term
Which of the following is characteristic of all leukocytes |
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Definition
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Term
When can erythroblastosis fetalis not possibly happen in the child of an Rh negative mother: |
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Definition
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Definition
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Definition
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Term
Normal heart sounds are caused by which of the following events |
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Definition
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Term
The P-wave of a normal electrocardiogram indicates |
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Definition
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Term
Blood within the pulmonary veins returns to the |
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Definition
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Term
Small muscle masses attached to the chordae tendineae are the |
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Definition
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Term
The source of blood carried to capillaries in the myocardium would be the |
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Definition
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Term
When the heart is beating at 75 times per minute, how many seconds is the duration of one cardiac cycle |
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Definition
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Term
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Definition
Contains a lubricating fluid called serous fluid |
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Term
Norepinephrin acts on the heart by |
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Definition
causing threshold to be reached more quickly |
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Term
Which vessel(s) of the heart receive(s) blood during right ventricular systole |
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Definition
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Term
Which of the following is not part of the conduction system of the heart: |
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Definition
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Term
The tricuspid valve is closed |
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Definition
when the right ventricle is in systole |
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Term
Select the correct statement about heart valves |
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Definition
The AV valves are supported by chordae tendineae so that they do not blow back up into the atria during ventricular contraction |
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Term
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Definition
Has sarcomeres with A bands and I bands |
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Term
The second heart sound is heard during which phase of the cardiac cycle |
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Definition
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Term
If you were able to artificially alter the membrane permeability of pacemaker cells so that sodium influx is more rapid |
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Definition
Threshold is reached more quickly and heart rate would increase |
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Term
Isovolumetric contraction |
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Definition
refers to the short period during ventriular systold when the ventricles are completely closed chambers |
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Term
During contraction of heart muscle cells |
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Definition
Some calcium enters the cell from the extracellular space and triggers the release of larger amount of calcium from intracellular stores. |
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Term
Which electrocardiogram (EKG) wave represents the process of ventricular repolarization |
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Definition
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Term
The heart’s pacemaker is in the right atrium. How does the signal to contract get to the left atrium: |
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Definition
Through gap junctions in the atrial muscle |
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Term
Blockage of this vessel could most directly lead to a heart attack |
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Definition
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Term
The semilunar valves close as a result of a |
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Definition
Pressure decrease in the ventricles |
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Term
Which tissue of the heart fires action potentials spontaneously |
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Definition
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Term
A heart block results from |
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Definition
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Term
The greatest change in intra cardiac pressure occurs |
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Definition
During isovolumetric ventricular contraction |
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Term
Stimulation of the heart by the vagus nerve |
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Definition
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