Columella is a cylindrical structure found in the inner ear of many animals, including humans. It plays a crucial role in the auditory system by helping to transmit sound vibrations from the outer ear to the inner ear. This structure is essential for hearing and balance. In addition to its function in hearing, the term "columella" can also refer to a part of certain plants, specifically the central column in the fruit of some species. In botany, the columella supports the seeds and aids in their development, showcasing the term's relevance in both zoology and botany.