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31 Cards in this Set
- Front
- Back
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Which blood vessels are typically used to measure pulse rate? |
Carotid artery (neck) Radial arteries (wrist on thumb side) Popliteal arteries (behind knee) |
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Pulse |
Arterial palpation of heart beat by finger tips |
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Pulse Rate |
Number of pulses within one minute |
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Average resting pulse rate for adults? |
70-80bpm |
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Tachycardia |
Pulse rate above 100bpm |
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Bradycardia |
Pulse rate less than 60bpm |
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Stethoscope |
Instrument used to detect heart sounds |
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"Lub" |
Closure of tricuspid and bicuspid valves |
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"Dub" |
Closure of aortic and pulmonary semilunar valves |
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Heart murmur |
An extra sound caused by failure of valves to close properly |
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Sphygmomanometer |
Blood pressure cuff |
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Blood Pressure |
The force exerted by blood on the walls of the blood vessels |
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Brachial artery |
Found in upper arm |
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Systolic Pressure |
Higher number on top Represents pressure when heart contracts |
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Diastolic Pressure |
Lower number on bottom Represents pressure when heart relaxes |
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Korotkoff's sounds |
Sounds heard through a stethoscope as blood moves through a blood vessel |
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Pulse pressure |
Systolic - Diastolic Pressure of pulse |
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Hypertension |
High blood pressure as defined by a blood pressure of 130/80 on two out of three separate office visits |
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Electrocardiography |
A procedure which measures the electrical activity of the heart |
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Nodal cells |
Specialized cardiac muscle cells that spontaneously depolarize and make the heart contract |
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Automaticity |
The ability of nodal cells to stimulate the heart Is a unique feature of cardiac muscle |
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Cardiac conduction system |
Aka nodal system Sets rhythm and speed of heart rate Comprised of 5 main structures which conduct action potential: - Sinoatrial Node - Atrioventricular Node - Bundle of His - Bundle branches - Purkinje fibers |
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Electrocardiogram (ECG) |
Recording of the electrical changes of each cardiac cycle |
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Electrocardiograph |
The instrument used to record electrical changes in the heart |
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KardiaMobile |
An app that acts as an elecrocardiograph |
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P Wave |
Atrial Depolarization Membranes of cardiac muscle preparing to contract |
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QRS Complex |
Ventricular Depolarization Activity within ventricular cells leading up to contraction |
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T Wave |
Ventricular Repolarization Electrical signal from ventricular tissue leading back to relaxation |
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When does atrial repolarization occur? |
During the QRS complex |
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Arrhythmia |
Abnormal heart beat |
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Fibrillation |
Rapid, irregular contractions in the muscle fibers of the heart |
