Eye muscles
Middle/inner ear structures
Receptor cells and sensory tissues
Miscellaneous vision questions
Miscellaneous hearing & equilibrium questions
100
What is the name of the hole/opening that’s size is controlled by the iris muscles?
pupil
100
The name of this group of bones.
Ossicles.
100
What are the names and functions of the two types of photoreceptors found in the retina?
cones and rods
100
Why do you think the fovea centralis allows for the sharpest, most saturated vision?
More cones = better and clearer vision
100
What is the technical term for ear canal?
External acoustic/auditory meatus/canal
200
In general, what results from the ciliary muscle contracting/relaxing?
Changes the shape of the lens
200
What are the three main structures of the inner ear?
Visitipcholer nerve
Cochlea
Semicircular canals
200
What is the macula lutea?
focuses light rays to the retina
200
What is the optic disc?
Optic disc: the area on the retina where all the axons leave the eye; optic nerve begins here
200
These ring-like structures on the left side of the image are partly responsible for our sense of equilibrium.
Semicircular canals.
300
What is the name of the orbital bone that forms the structure of the tear drainage system?
lacrimal bone
300
how does the auditory tube serve to equalize pressure between the middle ear and the environment?
Opens and closes and allows air exchange between environment & the middle ear
300
What two structures do the fibers of the suspensory ligament connect?
ciliary body and lens
300
The technical term for our "blind spot".
Optic disc.
300
What is the function of the auricle?
Takes the sound from the outside to the inside simplifying it all in the process
400
This muscle contracts in response to bright light.
Radial muscle(s) of the iris.
400
What is the name of the fluid found between the two labyrinths?
endolymph
400
What is the function of the lens?
focuses light rays to the retina
400
why is the optic disc often referred to as the blind spot?
No light detecting cells
400
What structure serves as the boundary between the outer ear and middle ear?
eardrum/tympanic membrane
500
What is the name of the gland that produces tears?
lacrimal gland
500
what is the fluid found within the membranous labyrinth?
perilymph
500
The name of the "hairs" that bend to facilitate hearing and equilibrium.
Stereocilia.
500
what is the main function of the aqueous humor?
Gives nourishment and protects the eye
500
What are the three main structures of the inner ear?
Visitipcholer nerve
Cochlea
Semicircular canals