Final answer:
The correct answer is the middle ear, which contains the ossicles and is hollow region just beyond the tympanic membrane.
Step-by-step explanation:
The Hollow Region Beyond the Tympanic Membrane
The hollow region just beyond the tympanic membrane that contains the ossicles is known as the middle ear. The outer ear includes the pinna (or auricle), ear canal, and tympanic membrane, which conduct sound waves into the middle ear. Within the middle ear, the ossicles, comprising the malleus (hammer), incus (anvil), and stapes (stirrup), play a pivotal role in transmitting sound waves to the inner ear. The inner ear contains the cochlea and vestibule, which are essential for auditory perception (hearing) and balance (equilibrium), respectively.
Therefore, the correct answer to the question is: The middle ear is a hollow region just beyond the tympanic membrane that contains the ossicles.