Quiz - 32 - Diving Knowledge Workbook - Diving Physiology

[Pedro Burrito]

From the Diving Physiology Section of the PADI Diving Knowledge Workbook Version 2.02 © PADI 2009:

Objective 2.13 - Describe the basic anatomy of the ear and which areas/structures are most affected by changing pressures.

Question 2

The vestibular canals are located in the ___ and are responsible for ___.

a. inner ear / balance

b. middle ear / sound transmission

c. outer ear / channeling sound waves to the ear drum

d. brain / transmitting nerve impulses (sound)​

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[Pedro Burrito]

Spoiler: Answer

a. inner ear / balance

In addition to enabling us to hear, the inner ear also controls the sense of balance via the vestibular or semi-circular canals. These canals are arranged in such a way that the movement of fluid within them can be interpreted by the brain to determine balance and orientation.