BIOD152: Module 3 UPDATED ACTUAL
Exam Questions and CORRECT Answers
what are the 5 special senses - CORRECT ANSWER -vision, smell, taste, hearing, and
equilibrium (balance)
which sense does not have sensory organs, but somatic? - CORRECT ANSWER -touch
What are the two parts of the outer layer of the eye? - CORRECT ANSWER -sclera (the
white of the eye) and cornea
what is the aqueous humor? - CORRECT ANSWER -fills the space between cornea and
lens
What is included in the middle layer of the eye? - CORRECT ANSWER -choroid, the
ciliary muscle, and the iris
purpose of choroid - CORRECT ANSWER -- prevents light from dispersing throughout
the eye.
- supplies blood to the eye.
what is the purpose of the ciliary body - CORRECT ANSWER -changes shape of the lens,
allowing us to focus on near/far objects
The pupil is a hole in the ____. what is it's purpose? - CORRECT ANSWER -iris. changes
the shape of the pupil depending on the amount of light
The inner sensory layer is the _____. - CORRECT ANSWER -retina
, What are the two types of photoreceptors and their functions? - CORRECT ANSWER -
cones: operate in bright light, helping to generate sharp color images.
rods: stimulated in dim light, does not generate sharp or colorful images
The interior of the eye (posterior to the lens) is filled with_____. - CORRECT ANSWER -
vitreous fluid
True or False: The vision pathway begins as the optic tracts, crosses at the optic chiasm and then
moves through the optic nerve. - CORRECT ANSWER -false
Where is the LGN located? - CORRECT ANSWER -in the thalamus
vision pathway from environment to brain - CORRECT ANSWER -1. optic nerve
2. optic chiasm
3. optic tracts
4. LGN of the thalamus
5. optic radiations
6. occipital lobe
7. interpreted as vision
True or False: The nasal visual field is the visual field on the lateral sides of each eye. -
CORRECT ANSWER -false
What allows for 3-D vision? - CORRECT ANSWER -Overlapping information in the
nasal visual fields, creates binocular visual field
True or false: Only the medial fibers cross at the optic chiasm. - CORRECT ANSWER -
true
Exam Questions and CORRECT Answers
what are the 5 special senses - CORRECT ANSWER -vision, smell, taste, hearing, and
equilibrium (balance)
which sense does not have sensory organs, but somatic? - CORRECT ANSWER -touch
What are the two parts of the outer layer of the eye? - CORRECT ANSWER -sclera (the
white of the eye) and cornea
what is the aqueous humor? - CORRECT ANSWER -fills the space between cornea and
lens
What is included in the middle layer of the eye? - CORRECT ANSWER -choroid, the
ciliary muscle, and the iris
purpose of choroid - CORRECT ANSWER -- prevents light from dispersing throughout
the eye.
- supplies blood to the eye.
what is the purpose of the ciliary body - CORRECT ANSWER -changes shape of the lens,
allowing us to focus on near/far objects
The pupil is a hole in the ____. what is it's purpose? - CORRECT ANSWER -iris. changes
the shape of the pupil depending on the amount of light
The inner sensory layer is the _____. - CORRECT ANSWER -retina
, What are the two types of photoreceptors and their functions? - CORRECT ANSWER -
cones: operate in bright light, helping to generate sharp color images.
rods: stimulated in dim light, does not generate sharp or colorful images
The interior of the eye (posterior to the lens) is filled with_____. - CORRECT ANSWER -
vitreous fluid
True or False: The vision pathway begins as the optic tracts, crosses at the optic chiasm and then
moves through the optic nerve. - CORRECT ANSWER -false
Where is the LGN located? - CORRECT ANSWER -in the thalamus
vision pathway from environment to brain - CORRECT ANSWER -1. optic nerve
2. optic chiasm
3. optic tracts
4. LGN of the thalamus
5. optic radiations
6. occipital lobe
7. interpreted as vision
True or False: The nasal visual field is the visual field on the lateral sides of each eye. -
CORRECT ANSWER -false
What allows for 3-D vision? - CORRECT ANSWER -Overlapping information in the
nasal visual fields, creates binocular visual field
True or false: Only the medial fibers cross at the optic chiasm. - CORRECT ANSWER -
true
