Multiple Choice
Where are progesterone and estrogen primarily secreted from in the human body?
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16. The Endocrine System
Introduction to the Endocrine System
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In the inner ear, the utricle and saccule contain small crystals. What are these crystals called?
A
Cochlea
B
Otoliths
C
Ossicles
D
Semicircular canals
Verified step by step guidance1
Begin by understanding the anatomy of the inner ear, which includes structures such as the cochlea, ossicles, semicircular canals, utricle, and saccule.
Focus on the utricle and saccule, which are part of the vestibular system responsible for balance and spatial orientation.
Learn that the utricle and saccule contain small crystals that play a crucial role in detecting linear acceleration and head position relative to gravity.
These small crystals are known as otoliths, which are composed of calcium carbonate and are embedded in a gelatinous layer within the utricle and saccule.
Recognize that otoliths are distinct from other inner ear structures like the cochlea (involved in hearing) and ossicles (small bones that transmit sound vibrations).
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