Eye muscles
Middle/inner ear structures
Receptor cells and sensory tissues
Miscellaneous vision questions
Miscellaneous hearing & equilibrium questions
100
Which muscle allows you to look down?
inferior rectus
100
The name of this group of bones.
Ossicles.
100
True or False?
The hair receptors produce nerve impulses.
True
100
What are the two main structures of the fibrous tunic?
sclera and cornea
100
What is the technical term for ear canal?
External acoustic meatus
200
Which muscle allows you to look up?
Superior rectus
200
What are the three bones in the middle ear?
malleus, incus, stapes
200
The floor of the cochlear duct is formed by what structure?
basilar membrane
200
What is the main function of the cornea?
The cornea refracts light that comes into the eye
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 hole/opening that’s size is controlled by the iris muscles?
pupil
300
What structure serves to equalize pressure between the middle ear and the environment?
eustachian tubes
300
Impulses are sent out from the inner ear by which cranial nerve?
vestibulocochlear nerve
300
The technical term for our "blind spot".
Optic disc.
300
What is the function of the auricle?
Funnel sound waves into the ear
400
This muscle contracts in response to bright light.
Radial muscle(s) of the iris.
400
The stapes is attached to what structure?
oval window
400
What two structures contains modified hair receptors to detect equilibrium?
semicircular canals and vestibule
400
What is the function of the lens?
Focuses light onto the retina
400
The Cochlear duct contains what type of fluid?
endolymph
500
The lateral rectus muscle is innervated by which cranial nerve?
Abducens Nerve
500
What structure serves as the boundary between the outer ear and middle ear?
eardrum (tympanic membrane)
500
The name of the "hairs" that bend to facilitate hearing and equilibrium.
Stereocilia.
500
Why does the fovea centralis allows for the sharpest, most saturated (colorful) vision?
it has more cones located there
500
The Scala vestibul contains what type of fluid?
Perilymph