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The retina is composed of two layers: an inner pigmented layer and an outer neural layer.

A) True
B) False

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The structure that functions as a diaphragm to control pupil size is the


A) ora serrata.
B) suspensory ligament.
C) iris.
D) cornea.
E) anterior chamber.

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

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The eye structure that transmits and refracts incoming light is the


A) iris.
B) pupil.
C) ciliary body.
D) cornea.
E) conjunctiva.

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

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  -In this diagram of a taste bud,what structures does number 3 indicate? A) Gustatory microvilli B) Basal cells C) Supporting cells D) Sensory nerves E) Taste pores -In this diagram of a taste bud,what structures does number 3 indicate?


A) Gustatory microvilli
B) Basal cells
C) Supporting cells
D) Sensory nerves
E) Taste pores

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

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What is the function of the auditory tube?


A) To transmit sound waves to the inner ear
B) To equalize air pressure between the atmosphere and the middle ear
C) To prevent the invasion of microorganisms into the inner ear
D) To provide a passageway for fluid from the middle to the inner ear
E) To provide an airway between the middle and inner ear

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

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Where would you find olfactory hairs?


A) Scattered among the lamina propria
B) At the apical surface of olfactory neurons
C) Buried within the olfactory glands
D) At the surface of supporting cells
E) Concentrated along basal cells

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

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Where is the saccule located?


A) Within the middle ear
B) Lateral to the auditory ossicles
C) Within the cochlea
D) Within the vestibule
E) In the auditory tube

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

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Order the eye layers from the outermost to the innermost layer. A: Neural tunic B: Fatty tunic C: Vascular tunic D: Fibrous tunic


A) a,b,c
B) b,a,c
C) a,b,d
D) c,a,d
E) d,c,a

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

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What is the correct order for structures in the nervous system pathway for hearing? A: Thalamic neurons project to the auditory cortex. B: Axons project to inferior colliculi or superior olivary nucleus. C: Axons terminate in the cochlear nucleus in the brainstem. D: Axons from inferior colliculus project to the medial geniculate nucleus of the thalamus. E: Impulse travels in cochlear nerve sensory fibers.


A) e,c,b,d,a
B) b,c,d,e,a
C) c,b,a,d,e
D) e,d,c,a,b
E) a,b,e,c,d

F) D) and E)
G) None of the above

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  -In this illustration of the ear,what structure does number 4 indicate? A) Cochlea B) Stapes C) Tympanic membrane D) Incus E) Malleus -In this illustration of the ear,what structure does number 4 indicate?


A) Cochlea
B) Stapes
C) Tympanic membrane
D) Incus
E) Malleus

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

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The conjunctiva that lines the internal surface of the eyelids is termed the _____ conjunctiva.


A) palpebral
B) retinal
C) ocular
D) epithelial
E) visceral

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

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  -In this view of the olfactory organs,what structure does number 2 indicate? A) Olfactory hairs B) Olfactory receptor C) Olfactory bulb D) Basal cell E) Axon of olfactory receptor cell -In this view of the olfactory organs,what structure does number 2 indicate?


A) Olfactory hairs
B) Olfactory receptor
C) Olfactory bulb
D) Basal cell
E) Axon of olfactory receptor cell

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

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Which papillae,distributed on the anterior two-thirds of the tongue surface,actually lack taste buds?


A) Papiform
B) Filiform
C) Fungiform
D) Vallate
E) Foliate

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

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Where is the greatest concentration of cones located?


A) In the optic disc
B) In the macula lutea
C) In the fovea centralis
D) In the posterior retina
E) In the optic nerve

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

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A person having a heart attack may feel pain along the medial side of the left arm.This pain is known as


A) referred pain.
B) phantom pain.
C) selected pain.
D) covert pain.
E) masked pain.

F) A) and D)
G) None of the above

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What is the correct sequence for lacrimal fluid production and drainage? A: Tears disperse across the surface of the eye. B: Tears are produced by the lacrimal gland. C: Fluid drains through the nasolacrimal duct. D: Fluid enters the nasal cavity. E: Fluid enters the lacrimal canaliculi and collects in the lacrimal sac.


A) a,b,c,d,e
B) b,a,c,d,e
C) c,a,d,b,e
D) b,a,e,c,d
E) c,a,b,e,d

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

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These receptors detect changes in light intensity,color,and movement.


A) Chemoreceptors
B) Thermoreceptors
C) Photoreceptors
D) Mechanoreceptors
E) Baroreceptors

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

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Which sequence correctly traces the pathway of aqueous humor in the eye? A: Aqueous humor is secreted by epithelial ciliary cells. B: Aqueous humor is released into the posterior chamber. C: Aqueous humor is drained into the scleral venous sinus. D: Aqueous humor washes over the lens and then passes through the pupil into the anterior chamber.


A) a,b,c,d
B) b,a,c,d
C) a,b,d,c
D) d,a,c,b
E) a,c,b,d

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

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Gustatory cells within a taste bud are specialized neuroepithelial cells that have a(n) _________ life span.


A) 24-hour
B) 7-10 day
C) 2-4 week
D) one-year
E) undetermined

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

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Which structure is not considered to be part of the membranous labyrinth?


A) Vestibule
B) Semicircular duct
C) Saccule
D) Cochlear duct
E) Utricle

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

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