Term
| End Diastolic Volume (EDV) |
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Definition
-Volume of blood in the ventricle just before contraction
-Increases during exercise |
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Term
| End Systolic Volume (ESV) |
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Definition
-Volume of blood in the ventricle just after the contraction
-Decreases during exercise |
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Term
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Definition
| Te amount of blood ejected from the Left ventricle during a contraction; the difference between the end-diastolic volume and the end-systolic volume |
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Term
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Definition
-The fraction of blood pumped out of the Left ventricle with each contraction, determined by dividing Stroke Volume(SV) by End-Diastolic Volume(EDV)
-EF=SV/EDV
-Average ejection fraction at rest = 60% |
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Term
| Average ejection fraction at rest is |
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Definition
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Term
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Definition
The volume of blood pumped out by the hear per minute.
Q=HR x SV |
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Term
| Formula for Cardiac output |
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Definition
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Term
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Definition
| between 60-85 beats per minute |
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Definition
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Term
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Definition
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Term
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Definition
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Term
| Mean Arterial Pressure(MAP) |
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Definition
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Term
| Systolic Blood Pressure(SBP) |
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Definition
| is the highest pressure within the vascular system generated during cardiac contraction |
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Term
| Diastolic Blood Pressure(DBP) |
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Definition
| is the lowest pressure within the vascular system when the heart is relaxed |
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Term
| Blood Pressure is determined by |
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Definition
-Pre-load
-Volume
-After-load |
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Term
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Definition
| stretch receptors in the aortic arch and carotid arteries that are sensitive to change in blood pressure |
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Term
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Definition
| Chemical receptors that relay information about the chemical environment |
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Term
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Definition
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Term
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Definition
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Term
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Definition
| Specialized cell junctions in the myocardium where one muscle cell connects to the next |
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Term
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Definition
| Supplies the right side of the heart dividing into the marginal artery and posterior interventricular artery |
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Term
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Definition
| Supplies the left side of the heart dividing into the circumflex artery and anterior descending artery |
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Term
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Definition
| a group of specialized cardiac muscle fibers located in the upper posterior wall of the right atrium. Specialized cells that spontaneously depolarize at a fast rate (pacemaker) |
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Term
| Atrioventricular node(AV) |
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Definition
| located in the right atrial wall near the center of the heart. Conducts the electrical impulse from the atria into the ventricle |
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Term
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Definition
| A recording of the heart's electrical activity |
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Term
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Definition
| An machine used to obtain an electrocardiogram |
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Term
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Definition
| Atrial Depolarization- occurs when the electrical impulse travels from the SA node through the atria to the AV node |
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Term
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Definition
| Ventricular depolarization- occurs as the impulse spreads from the AV bundle to the Purkinje Fibers |
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Term
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Definition
| Ventricular repolarization |
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Term
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Definition
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Term
| Premature Ventricular Contractions(PVC) |
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Definition
| A common cardiac arrhythmia that results in the feeling of skipped or extra beats caused by impulses originating outside the SA node |
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Term
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Definition
| A serious cardiac arrhythmia consisting of three or more connective premature ventricular contractions |
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