Outer hair cells (OHCs) are anchored to the immovable tectorial membrane and movable basilar membrane; basilar membrane vibrations cause OHC depolarization and hyperpolarization, leading to changes in basilar membrane stiffness to reduce or amplify vibration.
Τα εξωτερικά τριχοκύτταρα (OHCs) αγκυρώνονται στην ακίνητη τεκτονική μεμβράνη και την κινητή βασική μεμβράνη, και οι δονήσεις της βασικής μεμβράνης προκαλούν την εκπόλωση και υπερπόλωση των OHCs, οδηγώντας σε αλλαγές στη δόνηση της βασικής μεμβράνης για ενίσχυση ή μείωση.
| Front | How are outer hair cells related to tuning? |
|---|---|
| Back | 1. They are anchored to the immovable tectorial membrane and the movable basilar membrane 2. Vibrations of the basilar membrane also depolarize and hyperpolarize the OHCs 3. This info is transmitted to the pons which sends back commands that cause the OHCs to contract (shorten 10-15%) and lengthen 4. Shortening/lengthening changes the stiffness of the basilar membrane and reduces or amplifies vibration |
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