5589
When the otoconia were dropped into the canal to mimic the condition of moving otoconia in the canal , the action potentials changed together with the otoconial flow after a latent period .
 otoconia, canal, otoconia, canal, otoconial
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Anatomy 
Text: {0} 
Answer:
 otoconia, canal, otoconia, canal, otoconial