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leaflet

leaflet

1 8.4
A thin flap of a heart valve that helps control blood flow
  • noun
  • /ˈliːflɪt/
  • Specialized
translation icon : valva
  • Mitral regurgitation was considered to be pure when associated with unrestricted valve leaflet excursion and a normal mitral orifice area, as assessed by two-dimensional echocardiography.
  • valve leaflet
  • mitral valve leaflet
  • leaflet thickening

Examples

  • Mitral valve prolapse occurs when one or both of the leaflets billow back into the left atrium during systole.

    Academic text (2007)
  • The echocardiogram may also show any thickening of the leaflets.

    Academic text (2007)
  • One leaflet closed, two leaflets closed, and there should be the third right there.

  • The build up of charge draws water out of these cells and they shrivel, pulling the leaflet closed.

  • In this type of MVP, the leaflets are not affected.

    Academic text (2007)
  • The displacement of the leaflet(s) is at least 2 mm during systole.

    Academic text (2007)
  • The echocardiogram should show the posterior displacement of one or both of the leaflets at least 2 mm during systole.

    Academic text (2007)
  • One of the leaflets then billows backwards into the left atrium during systole, and this leads to prolapse.

    Academic text (2007)
  • There is leaflet dysfunction secondary to problems with the chordae tendinae, papillary muscle, or annulus.

    Academic text (2007)
  • The leaflets of the mitral valve open and close to regulate blood flow in the heart.

Synonyms

cusp
vsleaflet
  • Specialized
8.1

A thin triangular flap in a heart valve that lets blood flow in one direction

is a thin flap that helps control blood flow without stressing triangular shape

Surface Forms

leaflet singular
leaflets plural

Morphology

leaflet = leaf (semi-transparent) = leaf + let

Morphologically clear as 'leaf' + '-let', but the anatomical sense is specialized and may not be obvious to general learners.

Etymology

Leaflet comes from leaf and -let, which means 'small', so in the heart it is a tiny flap like a 'little leaf' that opens and closes to control blood flow.