Students will be prevented from enrolling in a course for a third (or subsequent) time unless re-enrollment is approved by the college of the studentâs major. If you have questions about how the course repeat policy may affect you, contact the Registrar's Office; 812-464-1761 or 800-467-1965. Hours: Monday - Friday.
A tympanostomy tube (also known as a grommet, T-tube, ear tube, pressure equalization tube, vent, PE tube or myringotomy tube) is a small tube inserted into the eardrum in order to keep the middle ear aerated for a prolonged period of time, and to prevent the accumulation of fluid in the middle ear.hen it is necessary to keep the middle ear ventilated for a very long period, a T-shaped tube may be used, as these T-tubes can stay in place for 2-4 years. Materials used to construct the tube are most often plastics such as silicone or Teflon. Stainless steel tubes exist, but are no longer in frequent use.
tympanic membrane, a thin, semitransparent membrane in the middle ear that transmits sound vibrations to the internal ear by means of the auditory ossicles. It is nearly oval in form, with a vertical diameter of about 10 mm, and separates the tympanic cavity from the bottom of the external acoustic meatus.