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