systole

views updated May 14 2018

sys·to·le / ˈsistəlē/ • n. Physiol. the phase of the heartbeat when the heart muscle contracts and pumps blood from the chambers into the arteries. Often contrasted with diastole.DERIVATIVES: sys·tol·ic / siˈstälik/ adj.

systole

views updated May 23 2018

systole The phase of the heart beat during which the ventricles of the heart contract to force blood into the arteries. Compare diastole. See blood pressure.

systole

views updated May 29 2018

systole (physiol.) regular contraction of the heart and arteries. XVI. — late L. systolē — Gr. sustolḗ, f. SY- + *stol- *stel- place, after sustéllein contract.

systole

views updated Jun 11 2018

systole
1. The phase of the heartbeat in which the heart contracts.

2. The contraction of a contractile vacuole.

systole

views updated May 29 2018

systole (sis-tŏ-li) n. the period of the cardiac cycle during which the heart contracts.
systolic (sis-tol-ik) adj.