Question 1:
Which structure in the ear is responsible for converting sound waves into electrical signals?
Explanation: The correct answer is B) Cochlea. The cochlea is a spiral-shaped structure in the inner ear that contains tiny hair cells. When sound waves enter the cochlea, these hair cells convert the mechanical vibrations of the sound waves into electrical signals that can be processed by the brain.
Question 2:
What is the name of the fluid-filled structure in the inner ear that helps maintain balance and body position?
Explanation: The correct answer is B) Semicircular canals. The semicircular canals are fluid-filled structures in the inner ear that help maintain balance and body position. They contain sensory cells that detect changes in head movement and provide information to the brain about the body's orientation in space.
Question 3:
What is the name of the small, cone-shaped structure in the inner ear that vibrates in response to sound waves?
Explanation: The correct answer is C) Eardrum. The eardrum, also known as the tympanic membrane, is a thin, cone-shaped structure located at the end of the ear canal. It vibrates in response to sound waves and transfers these vibrations to the middle ear, where they are further amplified and transmitted to the inner ear.
Question 4:
Which part of the ear is responsible for amplifying sound waves and transmitting them to the inner ear?
Explanation: The correct answer is C) Ossicles. The ossicles are a chain of three tiny bones in the middle ear: the malleus (hammer), incus (anvil), and stapes (stirrup). They work together to amplify sound waves and transmit them from the outer ear to the inner ear. The ossicles play a crucial role in the mechanical amplification of sound.
Question 5:
What is the term used to describe the conversion of sound waves into electrical signals in the cochlea?
Explanation: The correct answer is A) Transduction. Transduction refers to the process of converting sound waves into electrical signals in the cochlea. The hair cells in the cochlea detect the mechanical vibrations of sound waves and convert them into electrical signals that can be transmitted to the brain for processing and interpretation.