Vibrations in the eardrum are transmitted by the Eustachian tube to the oval window. a. False O b. True

1.) The middle ear chamber is an air-filled “hole in the head”, which is adapted to allow free movement of the tympanum as it vibrates. Unless the pressure in the chamber is equal to atmospheric pressure outside, the tympanum will be stretched outward or inward, impeding its vibration and causing discomfort or pain. When moving up in the elevator of a tall building, the surrounding atmospheric pressure is: a) increasing causing air to enter the middle ear chamber through the Eustachian tube. B.) increasing causing air to enter the middle ear chamber through the auditory canal C.)decreasing causing air to leave the middle chamber through the Eustachian tube D.) decreasing causing air to leave the middle ear chamber through the auditory canal

Which among the statements is/are true? a. It is easy to determine the sound which is directly on the level of the ear.b. The easiest to determine is the sound in the sides of the head.c. The sound from back and the front of head are the easiest to locate.d. The sound from below and behind of the head is the most difficult to locate.

A 33-year-old, right-handed roller derby skater comes to you complaining of periodic attacks of tinnitus ("ringing" or "buzzing") in her left ear and vertigo (the sensation that she and her surroundings are moving relative to one another, when she is standing or sitting still). She says these attacks have been becoming more frequent over the past year or so and that now, between attacks, she feels as though she can't hear as well with her left ear as she can with her right. Your examination reveals that the auditory threshold is indeed elevated in her left ear, whether you use air conduction or bone conduction. You also notice that touching either cornea with a wisp of cotton causes her right eye to blink briskly and her left eye to blink somewhat sluggishly. Then you notice that she seems to have a somewhat asymmetrical smile: The right side of her face moves more than the left. Which of the following best accounts for this patient's list of problems? Damage to the left…

.4 Figure shows the internal structure of the ear. Label and Describe in details how A-G structure works collectively in the hearing mechanism.

Describe how a sound signal is transduced in an auditory hair cell.

In what way does the ear DIRECTLY benefit from the function of the eustachian tube?a. It equalizes external and internal pressuresb. It equalizes pressure on both sides of the tympanic membranec. It equalizes pressure between ear and throatd. All of the above

Prolonged exposure to sound can cause hearing damage above dbA. 40 85 100 180 20

Match the correct letter response from the choices to identify the receptor type: nausea   a.interoceptors b.nociceptors c.exteroceptors d.mechanoreceptors e.proprioceptors