systole


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systole

 [sis´to-le]
the contraction, or period of contraction, of the heart, especially of the ventricles, during which blood is forced into the aorta and pulmonary artery. adj., adj systol´ic.
atrial systole contraction of the atria by which blood is forced into the ventricles; it precedes the true or ventricular systole and is indicated by the fourth heart sound.
extra systole see extrasystole.
ventricular systole contraction of the ventricles, forcing blood into the aorta and pulmonary artery.

sys·to·le

(sis'tō-lē),
Contraction of the heart, especially of the ventricles, by which the blood is driven through the aorta and pulmonary artery to traverse the systemic and pulmonary circulations, respectively; its occurrence is indicated physically by the first sound of the heart heard on auscultation, by the palpable apex beat, and by the arterial pulse.
[G. systolē, a contracting]

systole

/sys·to·le/ (sis´to-le) the contraction, or period of contraction, of the heart, especially of the ventricles.systol´ic
aborted systole  a weak systole, usually premature, not associated with pulsation of a peripheral artery.
atrial systole  the contraction of the atria by which blood is propelled from them into the ventricles.
extra systole  extrasystole.
ventricular systole  the contraction of the cardiac ventricles by which blood is forced into the aorta and pulmonary artery.

systole

(sĭs′tə-lē)
n.
The rhythmic contraction of the heart, especially of the ventricles, by which blood is driven through the aorta and pulmonary artery after each dilation or diastole.

sys·tol′ic (sĭ-stŏl′ĭk) adj.

systole

[sis′təlē]
Etymology: Gk, systole, contraction
the contraction of the heart, driving blood into the aorta and pulmonary arteries. The occurrence of systole is indicated by the first heart sound heard on auscultation, by the palpable apex beat, and by the peripheral pulse. systolic, adj.
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Systole

systole

Cardiology Contraction of the heart, generally understood to be ventricular, with ejection of blood from the right ventricle into the pulmonary arteries and from the left venticle into the aorta Signs of left ventricular systole 1st heart sound, apical beat, arterial pulse. See Ejection fraction. Cf Diastole.

sys·to·le

(sis'tŏ-lē)
Contraction of the heart, especially of the ventricles, by which the blood is driven through the aorta and pulmonary artery to traverse the systemic and pulmonary circulations, respectively; its occurrence is indicated physically by the first sound of the heart heard on auscultation, by the palpable apex beat, and by the arterial pulse.

systole

The period during which the chambers of the heart (the atria and the ventricles) are contracting. Atrial systole, in which blood passes down into the ventricles, precedes the more powerful ventricular systole in which blood is driven into the arteries. Systole alternates with a relaxing period called DIASTOLE.

systole

see HEART CARDIAC CYCLE.

sys·to·le

(sis'tŏ-lē)
Contraction of heart, especially of ventricles, by which blood is driven through aorta and pulmonary artery to traverse systemic and pulmonary circulations, respectively.

systole

the contraction, or period of contraction, of the heart, especially of the ventricles, during which blood is forced into the aorta and pulmonary artery.

atrial systole
contraction of the atria by which blood is forced into the ventricles; it precedes the true or ventricular systole.
extra systole
ventricular systole
contraction of the ventricles, forcing blood into the aorta and pulmonary artery.
References in periodicals archive ?
Therefore, changes in thoracic electrical impedance during systole are representative of stroke volume (SV) (Bernestein, 1986).
Bradycardia makes longer break between systole allow a better myocardial relaxation and a better recovery of the biological potential of the heart.
Myocardial bridging and subsequent compression during systole was found in the angiographic studies of 10% of young patients with HCM.
The processing and segmentation of ECG signals, to extract the portions of the signal which indicate systole and diastole, are performed with wavelet transforms.
Mean septal and free wall thickness during systole and diastole in group one and two were more than group three.
When contractility in S2 is decreased, then during systole the volume of S1 is decreased (due to contraction of normal ventricular muscle) while the volume of S2 is paradoxically increased.
The echo-Doppler study definitively resolved the issue by showing marked left ventricular hypertrophy with disproportionate thickening of the ventricular septum, cavity obliteration during systole, and marked systolic anterior motion of the anterior mitral leaflet against the hypertrophied septum that not only caused a left ventricular outflow tract velocity > 6 m/s, but also permitted severe mitral regurgitation into a large left atrium.
For example in observing the liver triad, the vein will give echo of the continuous flow, artery will have high pitch in systole and low in diastole, portal vein will give reverse flow in liver cirrhosis and C.
between systole and dawn, we ask: she gives us the snowdrop's
He came to the sensible conclusion that the pulse wave was due to the impact of the left ventricle during systole.
At the other end of the cardiac cycle - systole - blood flows more rapidly, resulting in dispersion of blood components and decreased viscosity.
This can, for example, show the blood within the cardiac chambers, as illustrated during diastole and systole in Figs 7b and 7c, respectively.

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