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).