diastole
1
7.9
- noun
- /daɪˈæstəˌli/
- Specialized
:
diástole
- A single cycle of cardiac activity can be divided into two basic phases: diastole and systole.
- ventricular diastole
- cardiac diastole
- diastole and systole
Examples
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A healthy heart normally pumps out about 60% of the total amount of blood available once it has filled during diastole.
Academic text (2011) -
Overall cardiac performance depends at least in part on the filling of the heart during diastole.
Academic text (2003) -
However, the bigger a heart gets, the shorter diastole is.
Blog text (28) -
Secondly, coronary blood only flows in diastole (when the ventricles are filling).
Blog text (28) -
The mitral or bicuspid valve allows blood to flow from the left atrium into the left ventricle during diastole.
Academic text (2007) -
They have hypertrophic cardiomyopathy, which predominantly effects diastole, that's the relaxation phase of the heart.
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When the ventricles are in diastole (relaxed), the SA node sends an electrical impulse to the atria, which causes the atria to contract and the ventricles to fill with more blood.
Academic text (2012) -
During diastole, the heart chambers widen to fill with blood before the next heartbeat.
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A healthy heart relies on adequate blood filling during diastole to maintain proper circulation.
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The heart's function is divided into two main phases: diastole, when it fills, and systole, when it contracts.
Surface Forms
Morphology
diastole = dia + stole
The components are Greek combining forms ('dia-' + '-stole') that are not productive or recognizable to average B1 learners, so they cannot reliably derive the meaning 'heart chamber filling' from the parts.
Etymology
Diastole comes from Greek parts dia- meaning 'apart' and -stole meaning 'a stretching open', so it literally means 'stretching apart'. That's why diastole is the part of the heartbeat when the heart's chambers widen and fill with blood.