Term
vessels that carry good to and from gas exchange surfaces on lungs |
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Definition
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Term
vessels that transport blood to and from the rest of the body |
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Definition
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Term
What connect the smalls arteries and veins and are the exchange vessels because their thin walls permit exchange of nutrients, dissolved gases, and waste products between the blood and surrounding tissues? |
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Definition
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Term
What is a cardiac muscle and never rests? |
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Definition
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Term
About how many times does the heart beat per day? |
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Definition
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Term
How many liters of blood does the heart pump in one day? |
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Definition
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Term
About how big is your heart? |
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Definition
the size of your clenched fist |
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Term
What are the two upper chambers of the heart that receive blood? |
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Definition
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Term
What are the two lower or pumping chambers of the heart? |
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Definition
right and left ventricles |
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Term
What is the inferior pointed tip of the heart? |
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Definition
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Term
Which way does the heart tilt? |
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Definition
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Term
What directly covers the outer surface of the heart? |
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Definition
visceral pericardium or epicardium |
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Term
What lines the inner surface of the pericardial sac which surrounds the heart? |
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Definition
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Term
What consists of collagen fibers and stabilizes the position of the heart? |
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Definition
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Term
What is the space between the visceral and parietal pericardium? |
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Definition
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Term
How much pericardial fluid serves as a lubricant reducing the friction of heartbeats between the visceral and parietal pericardium in the pericardial cavity? |
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Definition
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Term
What happens when a valve closes? |
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Definition
it prevents back flow of blood |
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Term
inflammation of heart that occurs in children with severe reactions to infection by streptococal bacteria |
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Definition
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Term
What is one of the first symptoms of coronary artery disease? |
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Definition
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Term
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Definition
sensation of pressure, chest contraction, and pain that may radiate from the sternal area to the arms, back, and neck |
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Term
What is the pacemaker of the heart? |
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Definition
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Term
Where is the sinoatrial node located? |
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Definition
where superior vena cava enter the right atrium |
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Term
heart rate is slower than normal |
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Definition
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Term
faster than normal heart rate |
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Definition
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Term
contraction, chamber contracts and pushes blood into an adjacent chamber or trunk |
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Definition
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Term
relaxation chamber fills with blood and prepares for next cardiac cycle |
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Definition
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Term
What is the upper number of blood pressure? |
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Definition
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Term
What is the lower number of blood pressure? |
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Definition
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Term
What is the average blood pressure? |
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Definition
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