Term
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Definition
| An amplifying device used to listen to the heart throught the chest. |
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Term
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Definition
| The gurgling or swishing sound heard when the valves do not completely close. Blood leaks back into the proximal chamber. |
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Definition
| the pressure exerted by the blood on its containing vessels. |
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Definition
| Contraction of the heart. Blood Exits the heart. |
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Term
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Definition
| The pressure generated by the blood during systole. |
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Term
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Definition
| Relaxation. Blood flows back toward the heart, closing the two semilunar valves. |
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Term
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Definition
| The pressure generated by the blood during disatole. |
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Term
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Definition
| A way of measuring blood pressure that involves inserting a tube directly into the artery |
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Term
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Definition
| An electronic blood pressure monitor. Measures blood pressure in an artery directly proximal to the elbow. |
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Term
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Definition
| The average Systolic Pressure for a normal 20-year-old student. |
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Term
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Definition
| The average diastolic pressure for an average 20-year-old student. |
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Term
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Definition
| Also called high blood pressure. The main causes are sodium and water retention, stress, kidney problems, and obesity. |
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Term
| Mean Arterial Pressure (MAP) |
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Definition
the average pressure of blood in all the systemic arteries. It can be calculated by first determining the pulse pressure. Then, subtract 1/3 of the PP from the diastolic pressure.
example:
MAP=80-1/3(40) |
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Term
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Definition
The difference between systolic pressure and diastolic pressure.
example:
120/90->30 |
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Term
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Definition
| the amount of blood delivered from the left ventricle to the various parts of the body in a given time. It only makes reference to the left ventricle because the right ventricle does not deliver blood to the body tissues. It is calculated by multiplying the heart rate (beats per min) by the stroke volume (ml of blood per min). |
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Term
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Definition
| the amount of blood ejected from the left ventricle every time it fully contracts. It is calculated by subtracting the end-systolic volume (ESV) from the end-diastolic volume (EDV). |
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Term
| End-systolic Volume (ESV) |
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Definition
| the amount of blood remaining in the ventricle at the end of full systole. |
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Term
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Definition
| the maximum amount of blood that the ventricle can hold. |
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Term
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Definition
| Generated due to the beating of the heart. As the ventricles enter systole, blood moves into both the pulmonary artery and the arota, and continues to flow away from the heart. As the ventricles enter diastole, blood is drawn back towards the heart. The blood does not flow smoothly through the vessels, rather, it pulsates->moves foward then backward. |
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Term
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Definition
| Sinoatrial node->atrioventricular node-> bundle of his->right and left branches->purkinje fibers. |
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Term
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Definition
| Recording the electrical activity of the heart. |
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Term
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Definition
| First upward deflection in an EKG, represents electrical activity that immediately precedes the contractions of the atria, it indicates atrial depolarization. |
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Term
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Definition
| Represents the electrical activity that immediately precedes ventricular contraction. Indicates the ventricular depolarization and the atrial repolarization. |
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Term
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Definition
| Third upward deflection, represents the repolarization of the ventricles. |
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