Forensic Medicine General 5250bfec Changes in middle ear after bih are observed in? A Werdin's test B Ploucquet's test C Fodere's test D Breslau's test High-Yield Explanation Ans. is 'a' i.e., Werdin's test Werdin's test: Before bih middle ear contains gelatinous embryonic tissue which is replaced by air after respiration.