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Health Assess Ch19

Heart and Neck Vessels

QuestionAnswer
Precordium Area on the anterior chest overlying the heart and great vessels
Base The broader, top part of the heart
Apex The bottom part of the heart
Atrioventricular (AV) values Separate the atria and ventricles; Two types: Tricuspid (Right) and Mitral/Bicuspid (Left)
Semilunar (SL) values Separate the ventricles and arteries, look like half moons; Pulmonic(R) & Aortic(L)
S1 Closure of the AV values, heard loudest at apex
S2 Closure of the SL values, heard loudest at base
Murmurs Gentle, blowing, swooshing sound heard on chest wall; turbulent blood flow
Frequency (pitch) Heart sounds are described as high pitched or low pitched, need stethoscope to hear
Intensity (loudness) Heart sounds are described as loud or soft
Duration Heart sounds are very short, silent periods are longer
Timing Heart sounds are either systole or diastole
Automaticity The heart can contract by itself without any signal/stimulation from the body
Sinoatrial (SA) node Pacemaker of the heart
In the resting adult, the heart pumps... 4 and 6 L of blood per minute throughout the body
Cardiac Output Equals the stroke volume times the rate
Stroke Volume The volume of blood in each systole
Rate The number of beats per minute
Preload Venous return that builds during diastole
Afterload The opposing pressure or resistance the ventricle must push against to pump blood
Created by: Futuredoctor09
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