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37 Cards in this Set
- Front
- Back
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Outer-most layer of the blood vessels is the....
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tunica externa (EX = outside)
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Inner-most layer of the blood vessels is the....
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tunica intima (IN = inside)
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Middle layer of the blood vessels is the....
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tunica media (MED = middle)
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The blood vessel that can have valves to prevent back flow of blood is the...
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vein
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The thickest-wall blood vessel is ....
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an artery
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The blood vessel that has only the tunica intima is...
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capillary
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The inside of the tunica intima is ____ to let blood flow smoothly, even in very narrow passages.
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very slick
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The open part of a blood vessel is called the....
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lumen
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A capillary a single layer of ...
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endothelium
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The tunica externa is also called....
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adventitia
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The layer that can contain smooth muscle and elastin is the....
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tunica media
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A recording of the electrical activity of the heart is an...
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electrocardiogram (ECG or EKG)
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An abnormally slow heartbeat, less than 60 beats per minute, is called....
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bradycardia
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An abnormally fast heartbeat, greater then 100 beats per minute, is called....
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tachycardia
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Check pain is also called...
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angina pectoris
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The part of an ECG that shows when the atria are depolarizing is the ____ wave.
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P
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The part of an ECG that shows when the ventricles are repolarizing is the ___ wave.
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T
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The part of an ECG where the ventricles are depolarizing, which precedes their contraction is the....
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QRS waves
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A condition in which the heart is firing in a random, uncoordinated fashion, making it useless form pumping blood is called.....
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fibrillation
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Repolarization of the ventricles is occurring at letter....
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E
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The time from A to F or from C to G is consider to be....
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one heart beat cycle
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The depolarization (firing) of the atria is occurring at letter ____, also known as the ____ wave.
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A
P |
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Depolarization & subsequent firing of the ventricles is represented by __,___,___, also known as the _____ complex.
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BCD
QRS |
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Use a calculator for this one. It takes 0.83 seconds to get from Peak C to Peak G. How many beats per second is this heart and also, how many beats per minute is it?
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1.2 beats per second [1 beat / 0.83 seconds = 1.2 bps]
72 beats per minute [1 bps x 60 sec/min = 72 bpm] |
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The peaks at C & G are typically called ___ waves.
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R
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The period when the ventricles are resting and filling with blood is known as...
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diastole
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The period when the ventricles are contracting while the atria are filling/resting is known as...
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systole
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The movement of blood to and from the heart muscle, providing it's nourishment is called ___ circulation.
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coronary
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The movement of blood to the body is called ____ circulation.
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systemic
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During _____ the ventricles are filling with blood.
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diastole
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In blood pressure lingo, the systole number is where and diastole number is where?
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systole over diastole.
[Think of di- as de-nominator.] |
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Normal BP is about ___ over ____.
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120/80
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Which number is "systole" for the atria?
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diastolic
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Increased pressure in the arteries is referred to as...
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high blood pressure
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Blockage to the coronary artery, which nourishes the heart, is called....
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coronary thrombus
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An inadequate supply of oxygen to the heart because of narrowing of the coronary arter (ischemia), and is painful, is called...
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angina pectoris
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AV node damage, resulting in a loss of control of the ventricles is called a...
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heart block
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