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Questions and Answers
Where are the equilibrium receptors located?
Where are the equilibrium receptors located?
The equilibrium receptors are located in the vestibule and semicircular canals of the inner ear.
What are the two types of equilibrium?
What are the two types of equilibrium?
Static Equilibrium and Dynamic Equilibrium.
Define Maculae.
Define Maculae.
Receptors for equilibrium in the vestibule of cochlea.
What are maculae composed of?
What are maculae composed of?
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Define otoliths.
Define otoliths.
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What do the otoliths do when the head moves?
What do the otoliths do when the head moves?
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What do hair cells do in static equilibrium?
What do hair cells do in static equilibrium?
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How are semicircular canals arranged?
How are semicircular canals arranged?
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Describe Crista ampullaris.
Describe Crista ampullaris.
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Define cupula.
Define cupula.
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What does the cupula do when the head moves?
What does the cupula do when the head moves?
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Study Notes
Equilibrium Receptors
- Located in the vestibule and semicircular canals of the inner ear.
Types of Equilibrium
- Static Equilibrium: Body is at rest.
- Dynamic Equilibrium: Body is in motion.
Maculae
- Receptors for equilibrium found in the vestibule of the cochlea.
- Composed of receptor hair cells embedded in a gel matrix that contains otoliths.
Otoliths
- Tiny calcium carbonate stones that are crucial for detecting changes in head position.
Function of Otoliths
- When the head moves, otoliths roll and cause the gel to slide, which pulls on hair cells and triggers a response.
Hair Cells in Static Equilibrium
- Hair cells convert head position into electrical signals sent to the cerebellum, informing the body of its orientation.
Semicircular Canals Arrangement
- Canals are positioned in three spatial planes, enabling detection of various movement types.
Crista Ampullaris
- Specialized receptors located within the semicircular canals that maintain equilibrium.
Cupula
- A gel-like cap covering hair cells within the semicircular canals.
Function of Cupula
- The cupula bends in response to head movements, stimulating the underlying hair cells to send impulses to the cerebellum.
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Description
Test your understanding of equilibrium with these flashcards focused on Chapter 8.3. Learn about the receptors, types of equilibrium, and key definitions related to balance in the inner ear. Perfect for reviewing key concepts in anatomy and physiology.
