Which structure contains cochlea and semicircular canals?

Which structure contains cochlea and semicircular canals?

• A. Outer ear
• B. Eustachian tube
• C. Inner ear
• D. Middle ear

Answer: (C)

The inner ear houses both the cochlea and the semicircular canals, which is why this structure is responsible for hearing and balance. The cochlea is the snail-shaped organ that converts sound vibrations into neural signals via the organ of Corti, enabling hearing. The semicircular canals form part of the vestibular system and detect rotational movement through the flow of endolymph, contributing to balance and spatial awareness. The outer ear and middle ear are involved in collecting and transmitting sound, with the Eustachian tube helping to equalize middle-ear pressure, but neither contains the cochlea or semicircular canals.

The inner ear houses both the cochlea and the semicircular canals, which is why this structure is responsible for hearing and balance. The cochlea is the snail-shaped organ that converts sound vibrations into neural signals via the organ of Corti, enabling hearing. The semicircular canals form part of the vestibular system and detect rotational movement through the flow of endolymph, contributing to balance and spatial awareness. The outer ear and middle ear are involved in collecting and transmitting sound, with the Eustachian tube helping to equalize middle-ear pressure, but neither contains the cochlea or semicircular canals.