The epithelial lining of the middle ear cavity and auditory tube arises from the ________________.

Question

Quizplus · Accepted Answer

The pharyngeal endoderm gives rise to the epithelial lining of the middle ear cavity and the auditory tube. This is because the middle ear and auditory tube originate from the first pharyngeal pouch, which is an invagination of the pharyngeal endoderm during embryonic development. The neural crest gives rise to structures such as the bones and cartilage of the face and ear, but not the epithelial lining. The otic placode gives rise to the inner ear, not the middle ear or auditory tube. The paraxial mesoderm gives rise to the muscles and connective tissue of the head and neck, but not the epithelial lining of the middle ear or auditory tube. The otocyst is another term for the developing inner ear, and does not give rise to the epithelial lining of the middle ear or auditory tube.

The Epithelial Lining of the Middle Ear Cavity and Auditory