What is the length of the incus, one of the small bones in the ear?

What is the length of the incus, one of the small bones in the ear?

• A. 5mm
• B. 7mm
• C. 9mm
• D. 11mm

Answer: (B)

The incus, commonly referred to as the anvil, is one of the three ossicles in the middle ear that play a crucial role in the process of hearing by transmitting sound vibrations from the tympanic membrane (eardrum) to the inner ear. The average length of the incus is approximately 7 mm. This measurement reflects the typical dimensions of the incus in an adult human ear, allowing it to effectively connect with both the malleus (the hammer) and the stapes (the stirrup), facilitating sound transmission. Understanding the size and function of the incus is important for hearing professionals as it helps in diagnosing and addressing various auditory conditions.

The incus, commonly referred to as the anvil, is one of the three ossicles in the middle ear that play a crucial role in the process of hearing by transmitting sound vibrations from the tympanic membrane (eardrum) to the inner ear. The average length of the incus is approximately 7 mm. This measurement reflects the typical dimensions of the incus in an adult human ear, allowing it to effectively connect with both the malleus (the hammer) and the stapes (the stirrup), facilitating sound transmission. Understanding the size and function of the incus is important for hearing professionals as it helps in diagnosing and addressing various auditory conditions.