Which of the following structures is directly connected to the eardrum?

The malleus is directly connected to the eardrum, also known as the tympanic membrane. This structure plays a critical role in the auditory system as it transmits sound vibrations from the eardrum to the other ossicles in the middle ear. When sound waves cause the eardrum to vibrate, these vibrations are picked up by the malleus, which is attached to its surface. The malleus then transmits these vibrations to the incus and subsequently to the stapes, ultimately leading to the oval window, which connects to the inner ear.

Understanding this connection is crucial as dysfunction in this area can lead to hearing loss and highlights the importance of the malleus in the process of sound transmission.