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