61: The ear Quizellenj2022-12-02T12:50:17-05:00 Please sign up for the course before taking this quiz. 1. Which of these ensures equal pressure on both sides of the eardrum?1 vestibule auditory canal malleus Eustachian tube oval window 2. Which one of these is NOT part of the inner ear?1 cochlea stapes vestibule semicircular canals round window 3. Which of these is NOT a part of the organ of Corti?1 tectorial membrane hair cells tympanic membrane nerve cells 4. Which of these words accurately describes the eardrum?1 transparent translucent opaque 5. Which of these touches the stirrip (stapes)?1 round window oval window 6. The entire outer ear (the part we see) is correctly called the:1 tragus pinna helix frenulum 7. Which of these describes the hearing range of humans?1 20 Hz to 200 Hz 20 Hz to 20,000 Hz 2 Hz to 20 Hz 2,000 Hz to 200,000 Hz 8. Where is the end of the Eustachian tube? (where fresh air can flow in or out)1 in the inner ear inside the sinuses in the larynx in the nasopharynx 9. How many semicircular canals are in the vestibular system?1 1 3 2 4 10. What causes the hair cells to trigger the neurons to send a signal?1 The tectorial membrane rubbing against them. The efferent nerves fibers bringing in signals from the brain. The vibrations in the fluid moving the hairs. The tympanic membrane vibrating with sound waves. 11. Which of these touches the eardrum?1 stirrup anvil hammer oval window 12. Which one of these is NOT part of the middle ear?1 malleus Eustachian tube stapes cochlea incus 13. Both the middle ear and inner ear are filled with fluid.1 True False 14. What is the function of the middle ear?1 to transfer sound vibrations to the inner ear to give us a sense of balance to translate sound into electrical signals 15. Which of these is the smallest bone in the body?1 stapes (stirrup) incus (anvil) malleus (hammer) 16. Where does the word “cochlea” come from?1 Latin for "hammer." Greek for "snail shell." Greek for "tube." Latin for "complicated maze." Greek for "cone-shaped." 17. What Hertz range is the human voice?1 About 100 to 300 Hz About 10 to 30 Hz About 1,000 to 3,000 Hz 18. Which of these is involved with our sense of balance?1 middle ear cochlea vestibular system organ of Corti 19. The shape of the pinna helps to bring in sound, especially the frequencies of the human voice.1 True False 81: Hypothalamus and pituitary 83: Adrenal glands Back to: 61: The ear