Anatomy
What structure responds to a change in velocity/angular acceleration?
Semicircular Canals
What is the sensory system that assists with balance, spatial awareness, and coordinating movements?
Vestibular System
Out of the three parts of the ear, which one contains fluid?
Inner ear
What head motions does the anterior semicircular canal detect?
Up and Down rotation like nodding yes
What are the two otolith organs called?
Utricle and Saccule
What is the function of the outer ear?
Directs sound waves into auditory meatus
How many semicircular canals are in the human body?
6
What semicircular canal would detect head motion of someone rotating their head in a "no" fashion?
Lateral Canal
What structure separates the inner ear from the middle ear?
Tympanic Membrane
When you are performing a squat what ear organ is detecting this motion?
Saccule
What cranial nerve contains afferent nerves for hearing and equilibrium?
Vestibulocochlear
If you were to laterally bend your cervical spine, which semicircular canal would detect the motion?
Posterior Canal
What is the name of the fluid that is inside of the Bony Labyrinth of the ear?
Perilymph
What head motion does the Utricle detect?
Forward and Backward acceleration/deceleration
What is the number in degrees that the semicircular canals are positioned from one another?
90 degrees
What plane does the lateral canal detect head motion in?
Transverse plane
Crista
The Otolithic organs are not sensitive to what motions?
Head rotational movements
What is the function of the perilymph?
Provide nutrients
Which vestibular system contains the semicircular canals?
Peripheral Vestibular System