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The flashcards below were created by user
jskunz
on FreezingBlue Flashcards.
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hemodynamics
movement and pressure of the blood
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ventricular diastole
- Phase when ventricles are relaxed
- the filling phase for the ventricles
- Pressure in ventricles is less than atria
- Mitral and tricuspid valves open to allow filling of ventricles
- Toward end, atria contract (atrial kick) to propel additional blood into ventricles, completing the filling phase of ventricles
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ventricular systole
- Marked by closure of mitral and tricuspid valves
- when ventricles contract and blood is propelled from them, atria relax (atrial diastole) and are filled
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stroke volume
amount of blood ejected from the heart with each contraction
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cardiac output
- the amount of blood ejected per minute
- equals stroke volume x HR
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mitral valve
- also called bicuspid valve
- on left side of heart
- AV valve with 2 cusps
- btwn pulmonary veins and left ventricle
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Aortic Valve
- Composed of 3 cusps
- Valve btwn left ventricle and aorta
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pulmonary semilunar valve
- Composed of 3 cusps
- Valve btwn Right ventricle and main pulmonary artery
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Tricuspid valve
- Right AV valve w 3 cusps
- Valve btwn Right atria and R ventricle
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murmurs
defined as series of audible, prolonged sounds resulting from turbulence created within the vascular system
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causes for heart murmurs
- Can be caused by one or a combo of:
- Increased flow through normal blood vessels, creating frictional, audible sounds
- Flow through constricted blood vessels (aortic stenosis)
- Flow into dilated blood vessel from one of normal size
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