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1. What sense does not have specialized sense organs?
A. Smell
B. Touch
C. Equilibrium
D. 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 rea-
soning.: 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
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
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, Portage Learning Anatomy & Physiology 2: Module 3 Exam
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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
4- D: Cochlear duct
5- E: Organ of Corti: label
12. Which of the following statements is false regarding the external ear?
A. The lobule does not contain cartilage.
B. The auricle funnels sound into the external acoustic meatus.
C. The helix contains cartilage.
D. The external acoustic meatus travels through the parietal bone.: D. The external
acoustic meatus travels through the parietal bone.
13. Which of the following statements is false regarding the middle ear?
A. The malleus receives vibrations from the eardrum.
B. It is filled with air.
C. It contains three small bones.
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