Small protrusions of the [[Arbeitsmyokard/en|working myocardium]] which hold the [[Chordae_tendineae/en|Chordae tendineae]] and tighten the [[Segelklappen/en|sail flaps]] shortly before the [[systole, systolic|systole]].
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Small protrusions of the [[Arbeitsmyokard/en|working myocardium]] which hold the [[Chordae_tendineae/en|Chordae tendineae]] and tighten the [[Segelklappen/en|valve leaflets]] shortly before the [[systole, systolic|systole]].