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Glaucoma is a state of elevated pressure within the eye that occurs when the ________ is obstructed so the aqueous humor is not reabsorbed as fast as it is secreted.


A) scleral venous sinus
B) posterior chamber
C) anterior chamber
D) lacrimal punctum
E) tarsal gland opening

F) B) and D)
G) A) and E)

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Match the structure associated with the eye with the appropriate description. -Palpebrae


A) The angle where the eyelids join
B) The space between the two eyelids
C) Another name for the eyelids
D) The membrane that covers the inner surface of the eyelids
E) The membrane that covers the anterior sclera of the eye

F) A) and C)
G) B) and D)

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Which of the following statements concerning vision is false?


A) Rods cannot detect color.
B) The visual pigment of cones is iodopsin.
C) Most of the optic tract axons terminate in the lateral geniculate nucleus of the thalamus.
D) Association neurons in the inner retinal layers modify signals of rods and cones.
E) Most of the optic tract axons terminate in the medial geniculate nucleus of the thalamus.

F) A) and C)
G) B) and E)

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For which of the following special senses are the receptor cells bipolar neurons?


A) Equilibrium
B) Hearing
C) Olfaction
D) Taste

E) A) and B)
F) B) and C)

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To which colors are the three different kinds of cones sensitive?


A) Blue, red, and yellow
B) Red, blue, and green
C) Red, violet, and yellow
D) Violet, green, and blue
E) Orange, indigo, and violet

F) A) and B)
G) A) and C)

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Arrange the following in correct sequence: (1) Taste cell depolarizes. (2) Action potential stimulated in sensory neuron associated with taste cell. (3) Food substance dissolves in saliva. (4) Neurotransmitter released by taste cell. (5) Food substance enters taste pore and attaches to receptor on taste hair.


A) 5, 4, 1, 2, 3
B) 3, 5, 1, 4, 2
C) 5, 3, 1, 4, 2
D) 3, 1, 4, 5, 2
E) 3, 2, 1, 5, 4

F) B) and D)
G) B) and C)

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Taste buds


A) can perceive seven basic tastes.
B) are replaced approximately every 30 days.
C) can only perceive taste if the molecules are in solution.
D) can be found covering both the superior and inferior surfaces of the tongue.
E) have axons and generate their own action potentials.

F) B) and E)
G) A) and B)

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Which of the following definitions best describes the timbre of sounds?


A) Loudness
B) Amplitude
C) Wave frequency
D) Resonance quality
E) Pitch

F) D) and E)
G) C) and E)

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The cornea


A) is highly vascular.
B) maintains the shape of the eye.
C) is white like the rest of the sclera.
D) is part of the focusing system of the eye.
E) does not contain connective tissue.

F) D) and E)
G) A) and B)

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You can smell the fragrance of your deodorant when you just put it on, but after a little while the smell fades. What explains this phenomenon?


A) The sensory projection of olfaction
B) The projection pathway of olfaction
C) The tonic nature of olfaction
D) The phasic nature of olfaction
E) The fast adaptation of the olfactory cortex to the smell of your deodorant

F) A) and B)
G) A) and C)

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Which of the following cranial nerves does NOT innervate extrinsic eye muscles?


A) Oculomotor
B) Abducens
C) Trochlear
D) Optic

E) A) and B)
F) A) and C)

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Match the description with the most appropriate ear structure. -Endolymph


A) Structures that produce earwax
B) Fluid in the membranous labyrinth
C) Fluid between the membranous and bony labyrinth
D) Ossicles connect this structure to eardrum
E) Connects the middle ear to the pharynx

F) A) and C)
G) B) and E)

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When rhodopsin is exposed to light,


A) more rhodopsin is formed.
B) retinal separates from opsin.
C) the cones generate action potentials.
D) free retinal is converted to vitamin A.
E) retinal becomes more attached to opsin.

F) A) and D)
G) B) and C)

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The photoreceptor cells are located


A) on the surface of the retina.
B) in the ganglionic layer of the retina.
C) in the photoreceptive layer of the retina.
D) in the choroid layer of the retina.
E) in the pigment cell layer of the retina.

F) C) and D)
G) B) and C)

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Damage to the left side of the brain near the visual cortex could result in which of the following visual changes?


A) Loss of temporal visual fields from both eyes
B) Loss of nasal visual fields from both eyes
C) Loss of right visual fields from both eyes
D) Loss of left visual fields from both eyes
E) None of the choices are correct.

F) All of the above
G) A) and B)

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The area of greatest visual acuity is the ________.


A) lens
B) fovea centralis
C) optic disc
D) posterior chamber
E) blind spot

F) A) and B)
G) A) and C)

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Light and dark adaptation involve


A) pupillary reflexes.
B) variations in rod and cone function.
C) changes in the amount of available rhodopsin.
D) All of the choices are correct.

E) C) and D)
F) A) and B)

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Binocular vision gives one depth perception, which is the ability to distinguish between near and far objects.

A) True
B) False

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Which of the following correctly describes the vestibular projection pathway to the brain?


A) Vestibular nerve - vestibulocochlear nerve - vestibular nuclei - thalamus - cerebral cortex
B) Vestibulocochlear nerve - vestibular nerve - vestibular nuclei - thalamus - cerebral cortex
C) Vestibular nerve - vestibulocochlear nerve - thalamus - vestibular nuclei - cerebral cortex
D) Vestibulocochlear nerve - vestibular nerve - thalamus - vestibular nuclei - cerebral cortex

E) A) and B)
F) None of the above

Correct Answer

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Which of the following are associated with the retina?


A) Lens and cones
B) Ciliary muscles and iris
C) Pupil and cornea
D) Suspensory ligaments
E) Rods and cones

F) A) and C)
G) All of the above

Correct Answer

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