PSYC 212 Lecture Notes - Lecture 14: Tectorial Membrane, Basilar Membrane, Oval Window

• School: McGill University
• Department: Psychology
• Course: PSYC 212
• Professor: Mathieu Roy

Document Summary

Compression and when you can no longer compress it gets pushed. In water, the molecules are more tightly packed, so you don"t need a lot of compression before the wave starts moving. Easier to compression is because its already more dense and causes it to travel faster. Two types of hair cells in the organ of corti: inner and outer hair cells. 1 row of inner and 3 rows of outer hair cells. The hair on the hair cells is called the stereocilia. When there is a sound that travels through the ear canal tympanic membrane . Transfer vibration to oval window of the cochlea through the 3 ossicles oval membrane makes the liquid move inside the cochlea basilar membrane moves up and down. At rest nothing moves in the basilar membrane. The longest stereocilia of the outer hair cells are stuck to the tectorial membrane, but not the inner hair cells.