Nick was seriously injured in a football match. His wound has been bleeding. As a professional doctor, you need to perform surgery on Nick. The eardrum is a thin, cone-shaped membrane that separates the external ear from the middle ear. Its function is to transmit sound from the air to the ossicles inside the middle ear, and then to the oval window in the fluid-filled cochlea. Hence, it ultimately converts and amplifies vibration in air to vibration in fluid. The malleus bone bridges the gap between the eardrum and the other ossicles. Pay attention to the indications on the display and be ready to replenish blood at all times.

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