Tympanic membrane retraction over the surface and move out along the ear canal. Even if migration along the ear canal is blocked, new cells continue to grow so the surface of the eardrum becomes larger. This process of proliferation and migration can result in enlargement of a retraction pocket so that the eardrum expands and grows deeper into the ear. The majority of tympanic membrane retractions remain stable for long periods of time, or may even resolve spontaneously so that eardrum becomes normal again. Not all retractions are able to resolve even if middle ear pressure normalizes, as the retracted segment may become
Common name in English, including “stone curlews”, so the choice of the name “thick-knees” is not easy to defend but is a clear illustration of the hazards of the facile coinage of terminology. For collective nouns for various subjects see a list of collective nouns (e.g. a flock of sheep, pack of wolves) Some organizations have created official lists of common names, or guidelines for creating common names, hoping to standardize the use of common names. For example, the Australian Fish Names List or AFNS was compiled through a process involving work by taxonomic and seafood industry experts, drafted using the CAAB