Ear Trumpet

The auditory tube is present in many animals and must be in an anatomically healthy state for normal functioning of the respiratory tract. This canal is least often found in fish - there it disappears along with other cartilaginous elements. In representatives of the class of reptiles - turtles and crocodiles - it disappears only with a significant reduction in the head, when the neck no longer bears almost any cartilage. All other reptiles and mammals have it and further confirm the original assumption that the auditory tubal cable is a vestigial element of echolocation. This suggests that this element developed accidentally from a cartilaginous plate located in the nasal cavity along the entire canal along which