tympanic notch


notch

 [noch] an indentation, especially one on the edge of a bone or other organ; called also incisure.aortic notch (dicrotic notch) a small downward deflection in the arterial pulse or pressure contour immediately following the closure of the semilunar valves, sometimes used as a marker for the end of systole or the ejection period.parotid notch the notch between the ramus of the mandible and the process" >mastoid process of the temporal bones.Rivinus' notch (tympanic notch) a defect in the upper tympanic part of the temporal bone, filled by the upper portion of the tympanic membrane. Called also Rivinus' or tympanic incisure.

tym·pan·ic notch

[TA] the notch in the superior part of the tympanic ring bridged by the flaccid part of the tympanic membrane. Synonym(s): incisura tympanica [TA], incisura rivini, Rivinus incisure, Rivinus notch, tympanic incisure

Rivinus,

August Quirinus, German anatomist, 1652-1723. Rivinus canalsRivinus ducts - Synonym(s): minor sublingual ductRivinus gland - Synonym(s): sublingual glandRivinus incisure - Synonym(s): tympanic notchRivinus ligament - flaccid portion of the tympanic membrane that is attached to the petrous bone at the notch of Rivinus.Rivinus membrane - Synonym(s): flaccid part of tympanic membraneRivinus notch - Synonym(s): tympanic notch