Eye Histology Quiz
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What has the appearance of a sieve and is elastic to allow vessels and retinal axons to pass through?
A. Cribriform plate
B. Lamina sclera
C. Lamina cribrosa
D. Scleral membrane
True/False: The choroid is vascular.
A. TRUE
B. FALSE
True/False: The aqueous humor and part of the vitreous body are produced by the photosensitive retina.
A. TRUE
B. FALSE
What are the blood vessels in the large vessel layer called?
A. Orbital vessels
B. Choroidal vessels
C. Choriocapillaris
D. Choroidal branches
How many layers of epithelium does the cornea have?
A. 1
B. 2
C. 3
D. 0.5
The lens is composed of high concentrations of lens ______ and keeping the appropriate arrangement of these is critical to maintain lens clarity with problems resulting in _______.
A. Connecting tissue; glaucoma
B. Connecting tissue; cataracts
C. Proteins; cataracts
D. Proteins; glaucoma
True/False: The posterior segment contains the vitreous body, retina, optic disc, and all layers external to the cornea.
A. TRUE
B. FALSE
True/False: The anterior segment contains the cornea, iris, pupil, lens, and anterior/posterior chambers.
A. TRUE
B. FALSE
There are two layers of cells in the non-photosensitive retina on the ciliary body. How many are pigmented?
A. None
B. Both
C. Only the outer
D. Only the inner
There are two layers of cells in the posterior iridial epithelium. How many are pigmented?
A. None
B. Both
C. Only the outer
D. Only the inner
The anterior segment is filled with ________ and the posterior segment is filled with _______, respectively.
A. Aqueous humor; vitreous body
B. Vitreous body; vitreous body
C. Vitreous body; aqueous humor
D. Aqueous humor; aqueous humor
True/False: Oral medications are the best to use to address eye issues as the systemic circulation will ensure treatment to all parts of the eye.
A. TRUE
B. FALSE
True/False: The vascularized layers in the eye consist of the sclera, cornea, retina, iris, and choroid.
A. TRUE
B. FALSE
What are the three layers of the globe from exterior to interior?
A. Retinal, Vascular, Fibrous
B. Vascular, Retinal, Fibrous
C. Fibrous, Retinal, Vascular
D. Fibrous, Vascular, Retinal
True/False: The lens epithelium is only present on the anterior surface of a fetal lens.
A. TRUE
B. FALSE
True/False: The corneal stroma contains blood vessels.
A. FALSE
B. TRUE
What is the correct layer of cells in the retinal from internal to external?
A. Bipolar cells, rods/cones photosensitive cells, and ganglion cells
B. Ganglion cells, rods/cones photosensitive cells, and bipolar cells
C. Bipolar cells, ganglion cells, and rods/cones photosensitive cells
D. Ganglion cells, bipolar cells, and rods/cones photosensitive cells
True/False: The retina is vascularized and vessels run in the nerve fiber layer.
A. FALSE
B. TRUE
All the zonular fibers together make the ____________.
A. Sling tendon
B. Slingluar ligament
C. Suspensory ligament
D. Suspensory tendon
True/False: The cornea is well innervated.
A. TRUE
B. FALSE
Changing the overall shape of the lens allowing for focusing on near/distant objects is called ____________ and is accomplished by the ciliary muscle.
A. Accommodation
B. Acclimation
C. Adjustment
D. Adaptation
What is responsible for suspending the lens?
A. Non-photosensitive retina present over the ciliary body
B. Cytoplasmic extensions of the iridial stroma
C. Zonules of the iris
D. Zonules of the ciliary body
What two muscles are present in the iris? What cranial nerve is used to perform mydriasis and miosis?
A. Pupillary sphincter and dilator; Oculomotor (III)
B. Pupillary sphincter and constrictor; Oculomotor (III)
C. Pupillary sphincter and dilator; Trigeminal (V)
D. Pupillary sphincter and constrictor; Trigeminal (V)
True/False: The lens can change shape to focus light and also varies depending on species.
A. TRUE
B. FALSE
The sclera is ______ as the cornea is ______.
A. Clear; clear
B. Opaque; clear
C. Clear; opaque
D. Opaque; opaque
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