Understanding the Vestibular Apparatus

What is the primary function of the semicircular canals?

• Maintaining balance

• Maintaining posture

• Hearing

• Detecting light

How many semicircular canals are there in the vestibular apparatus?

• Three

• Two

• One

• Four

What fluid is found within the semicircular canals?

• Blood

• Cerebrospinal fluid

• Endolymph

• Perilymph

Which structure in the semicircular canals is responsible for detecting movement?

• Cochlea

• Crista

• Ampula

• Macula

What is the role of the cerebellum in the vestibular system?

• Hearing

• Vision

• Smell

• Maintaining balance and muscle tone

What is the main function of the utriculus and sacculus?

• Hearing

• Detecting sound

• Regulating blood pressure

• Maintaining posture

Which receptor is found in the utriculus and sacculus?

• Crista

• Ampula

• Macula

• Cochlea

How does the macula detect the position of the head?

• Through electrical impulses

• By sensing gravity

• By detecting light

• Through sound waves

What is the key difference between semicircular canals and utriculus/sacculus?

• Semicircular canals detect sound, utriculus/sacculus detect light

• Semicircular canals maintain balance, utriculus/sacculus maintain posture

• Semicircular canals are in the brain, utriculus/sacculus are in the ear

• Semicircular canals are for vision, utriculus/sacculus are for smell

Which nerve transmits impulses from the vestibular apparatus to the brain?

• Optic nerve

• Auditory nerve

• Olfactory nerve

• Trigeminal nerve