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Anatomy Practical 3!

QuestionAnswer
What are the 5 basic components of the reflex arc? 1. Receptor 2. Sensory neuron 3. Integration center 4. Motor neuron 5. Effector
2nd intercostal on the right valve? Aortic valve
2nd intercostal on the left valve? Pulmonary valve
5th intercostal on the left valve? Bicuspid valve
5th intercostal on the right valve? Tricuspid valve
P wave Diastole
QRS wave Systole
T wave Systole
Ventricular filling (passive) When atrial pressure is greater than ventricular pressure, the AV valves are forced open, and blood flows passively into the atria and on through the ventricles
Ventricular filling (passive) Status of ventricles relaxed (diastole)
Ventricular filling (passive) Status of atria Relaxed (atrial diastole)
Ventricular filling (passive) Status of AV valves opened
Ventricular filling (passive) Status of SL valves closed
Ventricular filling with atrial contraction The atria contract to complete the filling of the ventricles. Ventricular diastole ends, and so the end diastolic volume (EDV) if the ventricles is achieved
Ventricular filling with atrial contraction Status of ventricles relaxed (diastole)
Ventricular filling with atrial contraction Status of atria contracted (atrial systole)
Ventricular filling with atrial contraction Status of AV valves opened
Ventricular filling with atrial contraction Status of SL valves closed
Isovolumetric contraction The contraction of the ventricles begins, and ventricular pressure increases, closing the AV valves
Isovolumetric contraction Status of ventricles contracted (systole)
Isovolumetric contraction Status of atria relaxed (atriole diastole)
Isovolumetric contraction Status of AV valves closed
Isovolumetric contraction Status of SL valves closed
Ventricular ejection Ventricular pressure continues to rise; when the pressure in the ventricles exceeds the pressure in the great vessels exiting the heart, the SL valves open, and blood is ejected
Ventricular ejection Status of ventricles contracted (systole)
Ventricular ejection Status of atria relaxed (diastole)
Ventricular ejection Status of AV valves closed
Ventricular ejection Status of SL valves open
Isovolumetric relaxation The ventricles relax, decreasing the pressure in the ventricles; the decrease in pressure causes the SL valves to close. The dicrotic notch is the result of a pressure fluctuation that occurs when the aortic valve snaps shut
Isovolumetric relaxation Status of ventricles relaxed (diastole)
Isovolumetric relaxation Status of atria relaxed (atria diastole)
Isovolumetric relaxation Status of AV valves closed
Isovolumetric relaxation Status of SL valves closed
How long is the cardiac cycle? 0.8 seconds
Cardiac cycle time broken down within 0.8 seconds 0.1- atrial contraction 0.3- atrial relaxation and ventral contraction 0.4- TOTAL relaxation among atrial and ventral
Quiescent period The remaining 0.4 seconds of the cardiac cycle where there is relaxation
End diastolic volume (EDV) The volume of blood in the ventricle is GREATEST at the end of diastole!! (its all ready to be ejected)
The stroke volume (SV) The amount of blood ejected from each ventricle
The end systolic volume (ESV) The volume of blood in the ventricle is SMALLEST at the end of systole (it is all ejected)
Dicrotic notch The pressure change when the aortic valve snaps shut
What are the important 6 pulses from superior to inferior 1. Carotid artery 2. Brachial artery 3. Radial artery 4. Popliteal artery 5. Posterior tibialis artery 6. Dorsalis pedis artery
Lub When the S1 valves close (AVS- tricuspid and bicuspid)
Dub When the S2 valves close (SVS- pulmonary and aortic)
MAP Diastolic pressure + Pulse pressure / 3
Created by: liladdoyle
 

 



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