Table 2.
Histologic similarities between the elements from the temporal bones of humans and sheepa.
Element | Similar to humans |
---|---|
External ear canal epithelium | yes |
Middle ear epithelium | yes |
Auditory tube epithelium | yes |
Type of ossification | yes |
Mastoid cells | no |
Pyramidal eminence | yes |
Stapes muscle | yes |
Stapes muscle tendon | yes |
Tympanum tensor muscle | yes |
Tympanum tensor muscle tendon | yes |
Oval window membrane | yes |
Oval window niche | yes |
Annular ligament | yes |
Malleus ligament | yes |
Facial nerve | yes |
Endolymphatic duct | yes |
Lateral ampullary nerve | yes |
Vestibular nerve | yes |
Utriculus | yes |
Internal utricular crest | yes |
Utricular macula | yes |
Ossicles | yes |
Stria vascularis | yes |
Saccule | yes |
Tympanic bulla | no |
Cochlea | |
2.5 turns | yes |
Scala vestibuli | yes |
Scala media | yes |
Scala tympani | yes |
Round window | yes |
Organ of Corti | yes |
Hair cells | yes |
Basement membrane | yes |
Tectorial membrane | yes |
Reissner membrane | yes |
Comparison patterns: cellularity and architecture in a histology basis. We considered similar those elements which met both criteria, that is, which had the same cell type in the element being analyzed and anatomical similarity (visual analysis).