Eye Accessories
This mucous membrane lines the eyelids & covers the anterior eye except for the cornea
What is the Conjunctiva?
The outer fibrous layer of the eye consists of the sclera & this transparent structure
What is the Cornea?
To view nearby objects the ciliary muscle do this while the suspensory ligaments relax causing the lends to get thicker
What is Contract?
This is the outer funnelshaped structure of the ear
What is the Pinna?
This structure is not a structure at all, but a hole in the middle of the iris
What is the Pupil?
The ducts that drain tears into the nasal cavity originate in this eye region
What is the Medial Canthus?
The choriod layer, ciliary body & this structure make up the uvea of the eye
What is the Iris?
This structure, which secretes aquaeous humor, aids in suspending the lens
What is the Ciliary Body?
The middle ear is lined with this type of membrane
What is Mucous?
This cranial nerve is responsible for carrying teh sensory nerve impulse related to hearing & equilibrium
What is the Vestibulocochlear (acoustic)?
The six muscles that funciton to move the eyeball are inserted into this outermost layer
What is the Sclera?
The choriod layer produces this black pigment that functions to absorb excess light rays
What is Melanin?
This sinus, which encircules the eye at the junction of the cornea & sclera, drains aqueous humor
What is the Scleral Venous?
This lateral ossicle attaches to the centre of the tympanic membrane
What is the Malleus?
This is the focusing process involving the bending of light rays
What is Refraction?
In dim light, these muscles in the iris contract, causing the pupil to dilate
What are the Radial?
This depression, within the macula lutea, is filled primarily with color & detail sensitive cones
What is the Fovea Centralis?
This jelly-like fluid presses the retina firmly against teh choroid layer
What is the Vitreous Humor?
This tube functions to equalize air pressure between the middle war & the nasopharynx
What is the Auditory or Eustachian?
When we move our heads, these inner ear structures are responsible for dynamic equilibrium
What are the Semicircular Canals?
The ciliary muscles are responsible for adusting the curvature of this internal structure
What is the Lens?
This area, where the optic nerve exits the eyeball, lacks rods & cones
What is Accomodation?
This inner ear structure moves along with fluid in the cochlea, and contains the hearning receptors
What is the Spinal Organ?
What are Papillae?