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.

The Oxford Pocket Dictionary of Current English

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.

A Dictionary of Biology

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.

The Concise Oxford Dictionary of English Etymology T. F. HOAD

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.

A Dictionary of Zoology MICHAEL ALLABY

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.

A Dictionary of Nursing

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