cardiac cycle

(redirected from Atrial systole)
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Related to Atrial systole: atrial diastole, Ventricular systole

cardiac cycle

[′kärd·ē‚ak ‚sī·kəl]
(physiology)
The sequence of events in the heart between the start of one contraction and the start of the next.
References in periodicals archive ?
By the end of atrial systole, the impulse reaches the atrioventricular node, which is in the right atrium.
Absent ductus venosus atrial systole (a-wave), umbilical vein pulsations, loss of movement, and oligohydramnios were the strongest predictors of stillbirth and acidemia.
Laennec distinguished two heart sounds but attributed the first heart sound to ventricular systole and the second sound to atrial systole. He described murmurs and thrills, pectoriloquy (as a sign of tubercular cavities), egophony, bronchophony, a variety of rales, and normal and abnormal lung sounds.