31. The arms are composed of articulating ossicles held together by ligaments, and the pinnules have a similar structure. 32. These appendages are themselves formed of small ossicles called cirrals and the terminal one is often claw-like. 33. When presented with a high-intensity sound stimulus, the stapedius and tensor tympani muscles of the ossicles contract. 34. Like some other titanosaurs, ossicles have been found which are believed to represent dermal scutes that covered the skin. 35. The physical characteristics of this order include well separated lateral plates, which expose the oral surface of radial ossicles . 36. These small to medium-sized ossicles were actually embedded in the dermis and did not connect in a pattern. 37. In the middle ear, dislocation of the bones that reside in the middle ear ( the ossicles ) can occur. 38. They usually have short fleshy stalks and either two or three moveable ossicles forming a set of pincer-like jaws. 39. This typically involves some form of mastoidectomy which may or may not involve removing the posterior ear canal wall and the ossicles . 40. Ophiuroids have no ambulacral groove, and the radial canals instead run through the solid bone-like ossicles of the arms.
