It is fascinating that the tiny bones in the middle ear appear to have evolved from gills that were no longer needed. Figure 2 shows the path that sound waves follow from the sound source where they ...

In the evolution of the middle ear, the spiracle gill pouch and the hyomandibular bone play principle roles. We have already considered the evolution of the hyomandibular, quadrate and articular bones ...

They are about 36 millimeters long, just under 1.5 inches. The third of the tube that is closest to your middle ear is made of bone; the rest is made of cartilage. Eustachian tubes play an ...

Otitis media, or middle ear infections, in humans can be caused ... the large-gauge needle is placed perpendicular to the bone. Constant gentle pressure is applied while the needle is rotated ...