Bending the hair cells stretches the tip link, causing an influx of K+ ions and the generation of neural impulses in the VIIIth cranial nerve. Hair cells in the vestibular system are slightly different from those in the auditory system, in that vestibular hair cells have one tallest cilium, termed the kinocilium. Bending the stereocilia toward the kinocilium depolarizes the cell and results in increased afferent activity.
Robert Pattinson, Kristen Stewart begins filming for Twilight honeymoon. Robert Pattinson and Kristen Stewart is now housed in Pousada do Oura as they shoot the honeymoon of their Twilight characters vampire Edward Cullen and Bella Swan in Brazil. In Breaking Dawn, their Twilight characters are given an island by the vampire Esme, the mother-figure in Edward Cullen's coven.
Principal photography took 44 days and completed on May 2, 2008; the film was primarily shot in Oregon. Twilight was theatrically released on November 21, 2008; it grossed over US$393 million worldwide. It was released on DVD March 21, 2009 and became the most purchased DVD of the year.