DictionarymitralHeart valve
adjective

mitral

MYE-trul/mˈaɪtrʌl/

Relating to the valve between the heart's left upper and lower chambers.

The mitral valve controls blood flow between the heart's left chambers.

Accurate simplified heart cutaway highlighting two-leaflet mitral valve between left atrium and left ventricle, correct anatomical orientation, no extra valves highlighted.
Etymology

The headgear word came to name a bishop’s mitre. The heart valve was named for its resemblance to that hat, so mitral connects its anatomical meaning with a visual comparison.

In context

CrashCourse5:43
the atrium contracts, which increases the pressure, so the blood passes down through the mitral valve into the left ventricle.
The Heart, Part 1 - Under Pressure: Crash Course Anatomy & Physiology #25

More examples

  • The ultrasound shows mild mitral valve leakage.
  • She takes medication to manage her mitral valve disease.
  • Severe mitral stenosis can cause shortness of breath.

Similar words

bicuspid
Describes two cusps, including those of the mitral valve.