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. 2015 Oct 19;77(3):285–292. doi: 10.1590/S1808-86942011000300003

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).