Ocular Anatomy — Anterior Segment
1 / 10
The Canal of Schlemm drains aqueous humor into:
Aqueous humor passes through the trabecular meshwork into Schlemm’s canal, then into collector channels and episcleral veins.
2 / 10
Descemet’s membrane is the basement membrane of:
Descemet’s membrane is the basement membrane secreted by the corneal endothelium.
3 / 10
The lens is held in position by:
The crystalline lens is suspended by the zonular fibers (zonules of Zinn) attached to the ciliary body.
4 / 10
Which structure separates the anterior and posterior chambers of the eye?
The iris separates the anterior chamber (in front) from the posterior chamber (behind the iris).
5 / 10
The sphincter pupillae muscle is innervated by:
The sphincter pupillae is innervated by parasympathetic fibers via CN III through the ciliary ganglion.
6 / 10
The trabecular meshwork is located in:
The trabecular meshwork is in the angle of the anterior chamber, at the corneoscleral junction.
7 / 10
The normal intraocular pressure range is:
Normal IOP is 10–21 mmHg as measured by Goldmann applanation tonometry.
8 / 10
The aqueous humor is produced by:
Aqueous humor is produced by the non-pigmented epithelium of the ciliary body via active secretion, ultrafiltration, and diffusion.
9 / 10
Which layer of the cornea does NOT regenerate after injury?
Bowman’s layer does not regenerate after injury; it is replaced by fibrous scar tissue.
10 / 10
The cornea receives its oxygen supply primarily from:
The cornea, being avascular, receives oxygen primarily from the atmosphere through the precorneal tear film.
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