Masticatory muscle myositis is not the only cause of a dogâs inability to open the jaw. In MMM, the inability to open the jaw under anesthesia is a typical finding. However, this also can occur following trauma to the TM joint or chronic arthritic changes in the TM joints that could restrict movement.
fora. 1  First-person singular (eu) pluperfect indicative of ser. 2  Third-person singular (ele, ela, also used with tu and voce) vocÃª pluperfect indicative of. 3  Ser-first person (singular) eu pluperfect indicative of. 4  Ir-third person (singular, ele, ela also used with tu and) voce vocÃª pluperfect indicative.  of ir
forÂ·nix. An archlike anatomical structure or fold, such as the arched band of white matter beneath the corpus callosum of the brain. fornix. forâ¢nix. n., pl. any of various arched or vaulted anatomical structures, as the triangular bands of white fibers beneath the corpus callosum of the mammalian brain.