5 Questions
Describe the structures of the external ear and their functions.
The external ear consists of the auricle (pinna) and the external acoustic meatus (ear canal). The auricle collects sound waves and directs them into the ear canal, while the ear canal conducts sound waves to the eardrum (tympanic membrane).
What are the three auditory ossicles in the middle ear and their functions?
The three auditory ossicles in the middle ear are the malleus (hammer), incus (anvil), and stapes (stirrup). They transmit and amplify sound vibrations from the eardrum to the inner ear.
What is the medical term for inflammation of the external ear, and what are its components?
The medical term for inflammation of the external ear is Otitis externa. It involves inflammation of the auricle (pinna) and the external acoustic meatus (ear canal).
Explain the structure and function of the bony labyrinth in the internal ear.
The bony labyrinth in the internal ear consists of the vestibule, cochlea, and three semicircular canals. It is responsible for maintaining balance and spatial orientation.
What is the function of the 8th cranial nerve in the ear?
The 8th cranial nerve (vestibulocochlear nerve) carries nerve impulses for both hearing and balance from the ear to the brain.
Test your knowledge of the structures and functions of the ear, including the external, middle, and internal ear, as well as the vestibulocochlear nerve. Learn about the roles of these components in both hearing and balance.
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