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32 Cards in this Set
- Front
- Back
Higher viscosity of blood will increase the amount of stress placed on the heart while it is pumping. Viscosity of blood is highest when |
hematocrit is highest |
|
Which of the following is not a functional characteristic of WBCs |
Granulosis |
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Which blood type is generally called the Universal Donor |
O |
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An individual who is blood type AB negative can |
recieve any blood type in moderate amounts except that with Rh antigen |
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When neither anti-A serum nor anti-B serum clot on a blood plate with donor blood, the blood is type |
O |
|
No visible cytoplasmic granules are present in |
monocytes |
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Which of the following is a characteristic of all leukocytes |
They are nucleated |
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Fred's blood was determined to be AB positive. What does this mean |
There are no antibodies to A, to B, or to Rh antigens in the plasma |
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Normal heart sounds are caused by which of the following events |
Closure of the heart valves |
|
Hemorrhage with a large loss of blood causes |
A lowering of blood pressure due to change in cardiac output |
|
The P wave of a normal electrocardiogram indicates |
Atrial Depolarization |
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The condition where fluid compresses the heart and limits its ability to contract is called |
Cardiac Tamponade |
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The fact that the left ventricle of the heart is thicker than the right ventricle reveals that it |
Pumps blood against a greater resistance |
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Which of the following receives blood during ventricular systole |
Both the aorta and pulmonary trunk |
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The AV valves are closed |
When the ventricles are in systole |
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Select the correct statement about the heart valves |
The AV valves prevent backflow of blood into the atria during ventricular contraction |
|
During contraction of the heart muscle cells |
some calcium enters the cell form extracellular space and triggers the release of larger amounts of calcium from intracellular stores |
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If a person stands up suddenly from the prone lying position they may feel a sudden dizzy or lightheadedness. Which of the following is the least likely physiological response to this situation |
increased parasympathetic nerve impulses to the heart |
|
In red bone marrow newly formed blood cells enter the circulation. You would expect to see many ____ type of capillaries in red bone marrow |
Sinusoid capillaries |
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In general it is expected that _____ |
Hydrostatic pressure will drop as blood moves away from the arteriole end of the capillary bed |
|
The velocity and pressure of blood is slowest and lowest in the capillary beds. Which of the following is not an accurate description of the benefits of slow, low pressure blood in the capillary beds |
Lower pressure in the capillary bed helps to increase in the venus circulation |
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Which of the following would have the least influence on blood pressure |
white blood cell count |
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Which statement best describes arteries |
All carry blood away from the heart |
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Which of the following chemicals effects blood pressure for both the short and long term |
Angiotensin 2 |
|
Blood flow to the skin |
Increases when environmental temperature rises |
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Which of the following is the most significant source of blood flow resistance |
Blood vessel diameter |
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Which of the following is least involved in pulmonary circulation |
Superior Vena Cava |
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Which of the following Blood Pressure readings would be indicative of hypertension? |
170/96 |
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A thrombus (blood clot) in the first branch of the arch of the aorta would affect the flow of blood to the |
right side of the head and neck and right upper arm |
|
Secondary hypertension can be caused by |
Kidney Disease |
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The baroreceptors in the carotid sinus and aortic arch are sensitive to which of the following |
changes in arterial pressure |
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Which of the following transports oxygen-rich blood |
Pulmonary vein |