Flashcards in Cardiac Cycle & Valvular Heart Disease Deck (52)
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1
cardia cycle diagram
- pressure and volume
2
pressure on the upper part
- ventricular pressure
- aortic pressure
- left atrial pressure
3
volume on the lower part
- end diastolic volume when the heart is filled
- end systolic volume after the heart has ejected blood
- stroke volume
- difference bet EDV - ESV = SV
4
P wave
- atrial depolarization
- signal to the atrium to contract to push blood into the ventricles
- during ventricular filling
- during diastole
5
ventricular pressure
- systole
6
contracting ATRIA
- VENTRICLE is being filled
7
contacting VENTRICLE
- ATRIA IS being filled
8
QRS
- closure of the mitral valve (R wave) S1
- depolarization of the ventricles
- initiate systolic constriction ventricles
9
QRS valvular events
- closure of the mitral valve
10
R wave
- S1
- first heart sound
11
ventricular depolarization
- pressure in the ventricle is increasing
- isovolumetric contraction
- ventricular pressure >80 mmHg
- it pushes open the aortic valve, EDV
- open of the aortic valve
- blood is ejected to the aorta
- aortic pressure is rising simultaneously with the ventricular pressure
12
ventricular pressure falls
- causing fall in aortic pressure
- beginning of T wave
- ventricular repolarization to relax
13
T wave
- ventricular repolarization (RELAX)
- AORTIC PRESSURE >VENTRICULAR PRESSURE
- S2 second heart sound
- closure of the aortic valve
14
S2
- second heart sound
- closure of the aortic valve
- closure of the pulmonary valve causing split weaker pressure
15
T wave valvular event
- aortic closure
- S2
16
P wave in a EKG
- atrial depolarization
- mitral valve is opening
- filling of the heart
- no sound
- S3, S4
17
atrial depolarization
- S3, S4
18
QRS
- ventricular depolarization
- mitral close
- S1
19
PR interval
- AV node conduction
20
T wave
- ventricular repolarization
- closure of the aortic valve
- S2
21
QT or ST interval
- ejection phase
- aortic valve open
22
S1
- closure of the mitral valve and tricuspid valve
23
S2
- closure of aortic and pulmonary valve
24
widening split of S2
- pulmonary stenosis delay closure of the pulmonary valve
- right bundle branch block
25
fixed splitting of S2
- atrial septal defect (ASD)
- L=>R shunt
26
paradoxical splitting
- left bundle branch block
- advance aortic stenosis delay closure of aortic valve
27
apical beat
- 5th ICS MCL
- mitral valve
28
aortic valve
- second intercostal space R of the sternum
29
pulmonary valve
- second intercostal space L of the sternum
30
