In the eye, name the structures that allow vision in dim light and in the periphery
rods
In the eye, name the structures that allow for clear, color vision.
cones
Which of the following statements about the cornea is FALSE?
a. The external layer of the cornea is stratified squamous epithelium
b. The cornea contains no nerves
c. The cornea contains no blood vessels
d. Light bends as it passes through the cornea
(write it is false that ____________ )
it is false that the cornea contains no nerves
Which region of the eye has enough cones for detailed color vision?
fovea centralis
Name the region of the eye that results in a “blind spot” in vision?
optic disc
State the function of the vitreous humor
Supports the posterior surface of the lens and holds the neural layer of the retina firmly against the pigmented layer
In close vision and bright light, __________ and the ___________ , controlled by _______________________
sphincter pupillae contracts
pupil constricts
parasympathetic fibers
In distant vision and dim light, the ________________ and the __________ allowing more light to enter, controlled by _____________
dilator pupillae contracts
pupil dilates
sympathetic fibers
What is the function of extraocular muscles?
voluntary eye movement
How does the eye "fine focus" on an object?
lens can adjust the curve of light as it enters the eye
When you experience an emotional response to an odor, what regions of the brain are involved?
limbic system
olfactory cortex
olfactory association area
posterior association area
Which ear structure allows you to equalize pressure in your ear when you are on a plane (and is responsible for the “pop” you hear in that situation)?
eustachian tube
Name the structure that participates in the response to angular (rotational) movements of the head.
semicircular canals
Name the structure that participates in the response to linear movements of the head.
the macula
Name the structure that is considered the organ of hearing?
the spiral organ and its hair cells
Which of the following statements is TRUE?
a. The olfactory nerves pass through the cribriform plate.
b. In order for us to experience a “smell,” the odor causing chemical must be dissolved in mucus.
c. The olfactory bulbs and tracts are components of cranial nerve #1
d. All of the above
d, all of the above
Name the two muscles within the middle ear that work to prevent damage to hearing receptors when the ear is exposed to very loud noises.
tensor tympani
stapedius muscles
Name the organs responsible for taste.
taste buds