| Question | Answer |
| Describe aqueous humor | -found in the anterior and posterior chambers
-provides nourishment for the lens & cornea
-drains from eye by a small hole, canal of schlemm
-produced by ciliary body |
| Describe cones | -function in bright light
-produces colour vision |
| describe rods | -function in dim light
-produces black and white vision |
| Describe conjunctiva | -lines the inner surface of the eyelids & cornea and the outer layer of the eyeball |
| describe fovea | -the center of the macula
-light rays from an object are directed to the fovea
-only cones
-provides greatest acuity |
| describe pupil | coloured contractile membrane
perforated center is the iris |
| Describe the vestibular system | -the function is control of balance & eye movements
-consists of semicircular canals
-responsible for maintaining both static and dynamic equilibrium
-vestibule (joins cochlea & semicircular canals |
| Describe vitreous humor | -jellylike substance that fills the interior of the eye - vitreous chamber
-refractive structures of the eye |
| What are the function of the ear | -sense receptor organ for hearing & equilibrium
-hearing is a function of the cochlea
-equilibrium is a function of semicircular canals & vestibule |
| What are the 3 tunics of the eye | fibrous tunic
vascular tunic
sensory tunic |
| What is an otolaryngologist | a physician taht treats disorders, treats ears nose throat (ENT)
many employ audiologist |
| what are the specific sensations | vision
smell
taste
hearing
equilibrium |
| What is macular degeneration | detoriation of the macula responsible for central vision
most common is age related macular degeneration |
| What is otosclerosis | disorder characterized by ankylosis of he ossciles
most commonly affected is the stapes |
| Where are the ossciles located | middle ear |
