BIOS 213 Study Guide - Midterm Guide: Tympanic Duct, Cochlear Duct, Ossicles
Document Summary
Learning catalytic questions to study for exam 2. They transduce vibration in the tympanic membrane to pressure waves in the perilymph of the inner ear. The movement of perilymph in the scala tympani or the tympanic duct. A small hole in the round window would cause perilymph to enter the middle ear. The pressure waves in perilymph would be abnormal leading to abnormal pressures placed on the fluid in the cochlear duct. Depolarizing the hair cells in the organ of corti. They are the same, the only difference is the region of the cochlea that is stimulated which results in stimulating different areas of the auditory cortex. Endolymph presses on the cupula, causing the gel in the cupula to bend hair cells. When you shake your head to indicate no, you are activating hair cells in one of the semicircular canals. What causes this? then sloshing to catch up to the head presses on the cupula.
