Morphological Study of Auditory Ossicles in the Mouse

Mohammadpour, A.A. 2010. Morphological study of auditory ossicles in the mouse. J. Appl. Anim. Res., 37: 269-271. Anatomical descriptions of the temporal bone and auditory ossicles have been performed based on dissection of ten mouses (Twenty temporal bones). The auditory ossicles were three bones: the malleus (2.39 mm), the incus (0.7 mm) and the stapes (0.56 mm). The lenticular bone was a distinct bone and articulated with the tip of the long crus of incus. In addition to head and handle, the malleus had three distinct well developed processes lateral, anterior and muscular. The incus had long and short crus and the long crus was better developed than short crus. The stapes had a stapedial base with anterior and posterior cruses. The length of two crura were same. The hole of stapes (obturator foramen) was very large and triangular in shape.