Based on the attached figure (Figure 10.9 in your textbook), what causes K+ influx across the cell membrane of the apical end of hair cells of the ear? (A) Spiral ganglion Tectorial membrane Scala vestibuli Inner hair cells -45 mV Scala tympani Outer hair cells Scala media Organ of Corti Perilymph Low K+ 0mV Endolymph High K+ + 80 mV (B) Stria vascularis Basilar membrane Ca²+ Afferent. nerve O O 00 Depolarization Nucleus O 00 O -Depolarization- Vesicles K+ ions move down their concentration gradient due to high K+ in endolymph Transmitter To brain Stereocilia displaced toward the highest kinocilium, and tip links open K+ channels Inner hair cells -45 mV Scala tympani Perilymph Low K+ 0mV Basilar membrane Ca2 Afferent. nerve Nucleus A., and B., above Vesicles Transmitter To brain Stereocilia displaced toward the highest kinocilium, and tip links open K+ channels K+ ions move down their concentration gradient due to high K+ in endolymph Stereocilia bent away from the highest kinocilium, and tip links open K+ channels Ligand-gated K+ channels open due to deflection of the basilar membrane

Based on the attached figure (Figure 10.9 in your textbook), what causes K+ influx across the cell membrane of the apical end of hair cells of the ear? (A) Spiral ganglion Tectorial membrane Scala vestibuli Inner hair cells -45 mV Scala tympani Outer hair cells Scala media Organ of Corti Perilymph Low K+ 0mV Endolymph High K+ + 80 mV (B) Stria vascularis Basilar membrane Ca²+ Afferent. nerve O O 00 Depolarization Nucleus O 00 O -Depolarization- Vesicles K+ ions move down their concentration gradient due to high K+ in endolymph Transmitter To brain Stereocilia displaced toward the highest kinocilium, and tip links open K+ channels Inner hair cells -45 mV Scala tympani Perilymph Low K+ 0mV Basilar membrane Ca2 Afferent. nerve Nucleus A., and B., above Vesicles Transmitter To brain Stereocilia displaced toward the highest kinocilium, and tip links open K+ channels K+ ions move down their concentration gradient due to high K+ in endolymph Stereocilia bent away from the highest kinocilium, and tip links open K+ channels Ligand-gated K+ channels open due to deflection of the basilar membrane

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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