Heart as a pump. Heart as a pump. EchocardiographyEchocardiography

Cardiac cycleCardiac cycle

Systole Systole of of

atriumatrium

Systole of ventriclesSystole of ventricles

Діастолапередсердь

Діастола шлуночків

Cardiac cycleCardiac cycle Systole Systole

1. period of tension1. period of tension asynchrony contractionasynchrony contraction isometric contractionisometric contraction (all valves are closed) (all valves are closed) 2. period of ejection2. period of ejection protosphigmic interval protosphigmic interval

(opening of semilunear valves)(opening of semilunear valves) fast ejectionfast ejection slow ejectionslow ejection

SystoleSystole of of ventriclesventricles

1. period of tension1. period of tensionphases of phases of

asynchrony asynchrony contractioncontractionisometric isometric

contractioncontraction (all valves are (all valves are

closedclosed) )

SystoleSystole of ventriclesof ventricles

2. period of ejection2. period of ejection

protosphigmic interval protosphigmic interval (opening of semilunear (opening of semilunear

valvesvalvesfast ejectionfast ejection

slow ejection slow ejection

Cardiac cycle Cardiac cycle DiastoleDiastole

1. Period of relaxation1. Period of relaxation protodiastolic interval (closing of protodiastolic interval (closing of

semilunear valves)semilunear valves) phase of isometric relaxation phase of isometric relaxation

(opening of AV-valves is end of this phase)(opening of AV-valves is end of this phase) 2. Period of filling2. Period of filling phase of rapid fillingphase of rapid filling phase of slow fillingphase of slow filling phase of filling by help of atrium phase of filling by help of atrium

systole systole

DiastoleDiastole of of ventriclesventricles

PPeriod of eriod of relaxationrelaxation

protodiastolic interval protodiastolic interval (closing of semilunear (closing of semilunear

valves)valves) phase of phase of

isometric relaxation isometric relaxation (opening of AV-valves (opening of AV-valves is end of this phase)is end of this phase)

DiastoleDiastole of of ventriclesventricles

Period of fillingPeriod of filling phase of rapid phase of rapid

fillingfilling phase of slow phase of slow

fillingfilling

DiastoleDiastole of of ventriclesventricles

Period of fillingPeriod of filling by help of by help of

atrium systoleatrium systole

Heart sounds. ComponentsHeart sounds. Components I tone.I tone. 1. 1. Valve component (AV Valve component (AV

valves)valves). . 2. 2. Muscle componentMuscle component.. 3. 3. Vessels componentVessels component

(opening of semilunear valves)(opening of semilunear valves) 4. Atrium component4. Atrium component.. II tone. 1. II tone. 1. Valve componentValve component

(closing of semilunear valves)(closing of semilunear valves) 2. 2. Vessels componentVessels component..

Heart soundsHeart sounds

EchocardiographyEchocardiography

1. M-measure1. M-measure 2. D-measure2. D-measure 3. Doppler3. Doppler 4. Contrasting4. Contrasting

II positionII position

АО

Thank you!Thank you!