Eye muscles
Middle/inner ear structures
Receptor cells and sensory tissues
Miscellaneous vision questions
Miscellaneous hearing & equilibrium questions
100
What do the words rectus and oblique mean?
straight and diagonal
100
The name of this group of bones.
Ossicles.
100
what are the two types of photoreceptors?
cones and rods
100
What are the two main structures of the fibrous tunic?
sclera and cornea
100
What two structures of the inner ear are involved with balance?
vestibule and semicircular canals
200
Which extrinsic muscles are innervated by the oculomotor?
superior rectus, inferior rectus, medial rectus, inferior oblique
200
What is the name of the fluid found between the two labyrinths?
perilymph
200
what is it called when the receptor hair cells bend?
tectorial
200
What is the main function of the cornea?
focus light onto the lens
200
These ring-like structures on the left side of the image are partly responsible for our sense of equilibrium.
Semicircular canals.
300
explain why the radial muscles and circular muscles of the iris are considered antagonistic
The radial opens the pupil wider where the circular reduces it. One works while the other relaxes
300
What about the fluid found within the membranous labyrinth?
endolymph
300
how do hearing receptors work?
hair cells in the cochlea bend in response to vibrations
300
The technical term for our "blind spot".
Optic disc.
300
What are the names of the two inner ear membranes?
oval window and round
400
This muscle contracts in response to bright light.
Radial muscle(s) of the iris.
400
the ear drum is also known as?
tympanic membrane
400
What are the sensory receptors for hearing and balance?
hair cells
400
What is the function of the lens?
focus light onto the retina
400
What is the function of the auricle?
Directs sound waves into the ear canal
500
what results from the ciliary muscle contracting/relaxing?
Changing shape of the lens
500
What are the three main structures of the inner ear?
cochlea, vestibule, semicircular canals
500
The name of the "hairs" that bend to facilitate hearing and equilibrium.
Stereocilia.
500
What is the macula lutea?
Part of retina, Contains high concentration of cones or light sensitive receptor cells, responsible for high color vision
500
What structure serves as the boundary between the outer ear and middle ear?
Tympanic membrane (eardrum)