Eye Histology Quiz
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True/False: The aqueous humor and part of the vitreous body are produced by the photosensitive retina.
A. TRUE
B. FALSE
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)
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
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
True/False: The anterior segment contains the cornea, iris, pupil, lens, and anterior/posterior chambers.
A. TRUE
B. FALSE
True/False: Diseases that raise the viscosity of the vitreous body can cause the retina to detach.
A. TRUE
B. FALSE
True/False: The posterior segment contains the vitreous body, retina, optic disc, and all layers external to the cornea.
A. TRUE
B. FALSE
Which layer, composition, and organ produced by is incorrect?
A. Superficial layer, lipid, and Meibomian glands
B. Central layer, aqueous, and lacrimal glands
C. Central layer, cholesterol, and lacrimal glands
D. Basal layer, mucoid, and goblet cells
True/False: Ciliary processes are present in both the pars plana and pars plicata.
A. TRUE
B. FALSE
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
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 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 choroid is vascular.
A. TRUE
B. FALSE
True/False: The cornea is well innervated.
A. TRUE
B. FALSE
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
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 lens can change shape to focus light and also varies depending on species.
A. TRUE
B. FALSE
The latticework present in the iridocorneal angle is called…
A. Trabecular meshwork
B. Lamellar meshwork
C. Latticular meshwork
D. Conchal meshwork
True/False: The lens epithelium is only present on the anterior surface of a fetal lens.
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
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 retina is vascularized and vessels run in the nerve fiber layer.
A. FALSE
B. TRUE
True/False: The corneal stroma contains blood vessels.
A. FALSE
B. TRUE
True/False: The vascularized layers in the eye consist of the sclera, cornea, retina, iris, and choroid.
A. TRUE
B. FALSE
True/False: The sclera is vascularized,
A. TRUE
B. FALSE
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