This eye condition leads to blindness due to the loss of lens transparency.
cataract
This part of the eye regulates how much light enters through the pupil.
What is the iris?
The number of sensory neurons a part of the body as is represented in this diagram of the brain and body although it looks distorted
Sensory Homunculus
This condition occurs when the vestibular apparatus senses motion, but the eyes do not.
motion sickness
This disorder is characterized by difficulty falling asleep or staying asleep.
insomnia
Blindness caused by increased aqueous humor pressure is known as this condition
glaucoma
This structure vibrates back and forth when sound waves strike it
tympanic membrane
This structure connects the eye to the brain and transmits visual information.
optic nerve
This spiral-shaped structure of the inner ear is responsible for converting sound waves into nerve signals
cochlea
This is the deepest stage of non-rapid eye movement (NREM) sleep
Stage Four sleep
This lies between the lens and retina in the eye
vitreous chamber
The "blind spot" in the eye occurs at this location, where there are no photoreceptors
optic disc
Damage to Upper motor neurons results in these two conditions
Spastic paralysis and Hypereflexia
these receptors are stimulated by extreme temperatures
pain receptors
This sleep disorder causes breathing to repeatedly stop for 10 or more seconds during sleep
sleep apnea
Light is focused in front of the retina in this condition, making distant objects hard to see
myopia
This fluid fills the anterior chamber of the eye and helps maintain intraocular pressure
aqueous humor
Damage to a peripheral nerve often leads to this type of paralysis, characterized by decreased muscle tone and reflexes.
Flaccid Paralysis
This part of the ear connects the middle ear to the throat and helps equalize pressure.
Eustachian tube
This neurological sleep disorder is characterized by sudden, uncontrollable episodes of falling asleep during the day
narcolepsy
These glands produce tears to keep the eye moist and protect it from debris
lacrimal glands
Age-associated progressive loss of hearing in both ears is known as this condition.
presbycusis
This body part occupies a large portion of the motor area of the cerebral cortex.
vocalization organs
These tiny calcium carbonate crystals within the vestibular system help detect gravity and linear acceleration
otoliths
People with narcolepsy may also experience sudden loss of muscle tone triggered by strong emotions, a symptom known as this:
What is cataplexy