Anatomy and Physiology of the Eye
Fluid that is jellylike, and fills the eyeball, posterior to the lens.
what is the vitreous humor
This organ controls balance via monoliths made of calcium carbonate (otoliths) in the inner portion, and controls hearing via sound wave transmission.
what is the ear
This organ aids in speech, taste, and mechanical digestion
what is the tongue
This occurs when light converges in front of the retina
what is near sightedness
This is caused by inflammation or infection of the middle ear
what is otitis media
watery fluid that fills the space anterior to the iris and posterior to the cornea.
what is the aqueous humor?
This portion of the ear is involved in maintaining balance and equilibrium
what are the semicircular canals?
Olfactory chemoreceptor cells reside in this cavity and is responsible for the sense of smell.
what is the nasal cavity
This is a dangerous increase in intraocular pressure caused by excess aqueous humor, and can lead to blindness if left untreated.
what is glaucoma
This is inflammation of the external auditory canal
what is otitis externa
This is an accessory organ that produces tears which are a saline solution with an enzyme, lysozyme, which is antimicrobial, thus lubricating and protecting the eye from infection
what is the lacrimal gland?
This tube extends from the auricle of the ear to the tympanic membrane
what is the auditory canal tube
These 4 main receptors are found on the papillae of this organ.
what are sweet salty sour and bitter
This is a disorder in which the eyes do not move or focus together due to compromised neuromuscular communication
what is strabismus
This is classified as conductive or sensory hearing loss
what is hearing loss or deafness
This is a very tough, white outer coat of the eye which helps the eye maintain its shape
what is the sclera?
These three tiny bones of the middle ear transmit sound waves from the vibrating tympanic membrane to the inner ear
what are the ossicles
Impulses propagated along this nerve to the brain are responsible for the interpretation of smell.
what is the olfactory nerve
This occurs when a normally clear lens becomes cloudy or opague
what is a cataract
This results from a collection of fluid in the labyrinth of the inner ear and a degeneration of the hair cells (cilia) in the cochlea and vestibule
what is Meniere's disease
This is just posterior to the cornea, contains an involuntary sphincter muscle, is the colored portion of the eye and will dilate or constrict to regulate the amount of light entering the eye.
what is the iris
This is a snail shaped fluid filled organ that transmits mechanical waves to a neural signal (nerve impulse propagation).
These can detect over 6,000 distinct smells, sending signals via the olfactory nerve
This is caused by loss of lens elasticity as a person ages
what is Presbyopia
This is referred to as pink eye, is a highly contagious, and presents as inflammation of the conjunctiva
what is conjunctivitis