intermembranous part of rima glottidis

in·ter·mem·bra·nous part of ri·ma glot·ti·dis

[TA] the portion of the opening anterior to the vocal processes of the arytenoid cartilages bounded by the vocal ligaments; this portion is closed by contraction of the lateral cricoarytenoid (muscle) only during whispering. Synonym(s): pars intermembranacea rimae glottidis [TA], glottis vocalis, intermembranous part of glottic opening