1. They and associated trigeminal neurons would comprise the reflex's afferent arm. The vagi, perhaps with intermediaries, are its likely efferent arm.

2. Carina urethra´lis vagi´nae the column of rugae in the lower anterior wall of the vagina, immediately below the urethra

3. Stimulation of one or both vagi at 5 or 15 Hz or field stimulation of intrinsic duodenal nerves produced Significant increases in duodenal vein IR motilin concentrations and accompanying increases in duodenal motility.

4. A ridgelike structure. Carina tra´cheae a downward and backward projection of the lowest tracheal cartilage, forming a ridge between the openings of the right and left principal bronchi. Carina urethra´lis vagi´nae the column of rugae in the lower anterior wall of the vagina, immediately below the urethra.