Portage Learning Anatomy & Physiology 2: Module 3 Exam
1. What sense does not have specialized sense organs?
A. Smell
B. Touch
C. EquilibriumD. A&C: B. Touch
2. The posterior portion of the outer fibrous layer of the eye is called the
_____.: Sclera
3. What portion of the eye supplies blood supply to the other layers of the eye?:
Choroid (of the middle layer)
4. True or false: The more numerous type of photoreceptors are rods.: True
5. What is the correct order of how light passes through the eye?
A. Cornea, Lens, pupil, retina
B. Cornea, lens, vitreous fluid, retina
C. Lens, retina, cornea, optic nerve
D. Lens, vitreous fluid, optic nerve, retina: B. Cornea, lens, vitreous fluid, retina Vitreous
fluid fills the space posterior to the lens
(Vitreous fluid fills the space posterior to the lens)
6. A patient had a CVA in the area indicated by the red x in the figure, below.
What type of blindness is the patient most likely to incur? Explain your reasoning.:
Bilateral left visual field blindness
The right optic tract is damaged. All the sensory information from the left visual fields
travels together after the optic chiasm to the right side of the brain.
7. A patient has a brain tumor in the area indicated by the red x in the figure, below.
What type of blindness is the patient most likely to incur? Explain your reasoning.: Left
eye blindness
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, Portage Learning Anatomy & Physiology 2: Module 3 Exam
Left eye blindness because there is damage to the left optic nerve. Information from the
left visual field has not yet crossed at the optic chiasm. Both peripheral and nasal fields of
the left eye would be missing.
8. True or False: All sensory information from the optic nerves cross at the optic
chiasm.: False
(only medial fibers cross at optic chiasm)
9. The ________ is controlled by the trochlear nerve.
A. Superior rectus
B. Medial rectus
C. Lateral rectus
D. Superior oblique: D. Superior oblique
10. Your elderly patient is discussing her vision problems. She describes her vision as
blurry. Following a visual examination, her left eye deviates medially when looking
straight ahead. What is most likely causing the vision problem? Explain your reasoning.
A. Cataracts
B. Abducens nerve damage
C. Brain tumor in the occipital lobe
D. Medial rectus damageE. Superior rectus damage: B
The abducens nerve controls the lateral rectus. Damage to the lateral rectus would cause
there to be a muscle imbalance,
and the medial rectus would pull the eye medially when looking straight ahead, causing
blurry vision. (Diplopia)
11. Match the numbers (1-5) in the figure below with the correct terms (A-H). Note: not
all terms will be used.
1- A: Scala Tympani
2- B: Facial Nerve
3- C: Tympanic Membrane
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1. What sense does not have specialized sense organs?
A. Smell
B. Touch
C. EquilibriumD. A&C: B. Touch
2. The posterior portion of the outer fibrous layer of the eye is called the
_____.: Sclera
3. What portion of the eye supplies blood supply to the other layers of the eye?:
Choroid (of the middle layer)
4. True or false: The more numerous type of photoreceptors are rods.: True
5. What is the correct order of how light passes through the eye?
A. Cornea, Lens, pupil, retina
B. Cornea, lens, vitreous fluid, retina
C. Lens, retina, cornea, optic nerve
D. Lens, vitreous fluid, optic nerve, retina: B. Cornea, lens, vitreous fluid, retina Vitreous
fluid fills the space posterior to the lens
(Vitreous fluid fills the space posterior to the lens)
6. A patient had a CVA in the area indicated by the red x in the figure, below.
What type of blindness is the patient most likely to incur? Explain your reasoning.:
Bilateral left visual field blindness
The right optic tract is damaged. All the sensory information from the left visual fields
travels together after the optic chiasm to the right side of the brain.
7. A patient has a brain tumor in the area indicated by the red x in the figure, below.
What type of blindness is the patient most likely to incur? Explain your reasoning.: Left
eye blindness
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, Portage Learning Anatomy & Physiology 2: Module 3 Exam
Left eye blindness because there is damage to the left optic nerve. Information from the
left visual field has not yet crossed at the optic chiasm. Both peripheral and nasal fields of
the left eye would be missing.
8. True or False: All sensory information from the optic nerves cross at the optic
chiasm.: False
(only medial fibers cross at optic chiasm)
9. The ________ is controlled by the trochlear nerve.
A. Superior rectus
B. Medial rectus
C. Lateral rectus
D. Superior oblique: D. Superior oblique
10. Your elderly patient is discussing her vision problems. She describes her vision as
blurry. Following a visual examination, her left eye deviates medially when looking
straight ahead. What is most likely causing the vision problem? Explain your reasoning.
A. Cataracts
B. Abducens nerve damage
C. Brain tumor in the occipital lobe
D. Medial rectus damageE. Superior rectus damage: B
The abducens nerve controls the lateral rectus. Damage to the lateral rectus would cause
there to be a muscle imbalance,
and the medial rectus would pull the eye medially when looking straight ahead, causing
blurry vision. (Diplopia)
11. Match the numbers (1-5) in the figure below with the correct terms (A-H). Note: not
all terms will be used.
1- A: Scala Tympani
2- B: Facial Nerve
3- C: Tympanic Membrane
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