Ocular Anatomy Flashcards
7 cards from real CPOA practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Ocular Anatomy flashcards as text
Which part of the uveal tract is most anterior?
Answer: Iris
The iris is the most anterior portion of the uveal tract, followed by the ciliary body and then the choroid posteriorly.
What is the primary function of the Bowman's layer of the cornea?
Answer: Structural support and protection
Bowman's layer is an acellular condensed collagen layer that provides structural integrity and protects the underlying stroma.
The central retinal artery is a branch of which larger artery?
Answer: Ophthalmic artery
The central retinal artery is the first intraorbital branch of the ophthalmic artery, which itself is a branch of the internal carotid artery.
What is the approximate axial length of a normal adult eye?
Answer: 24–26 mm
The normal adult axial length averages approximately 24–26 mm, with deviations contributing to myopia or hyperopia.
Which photoreceptor type is most sensitive to dim light conditions?
Answer: Rods
Rods contain rhodopsin and are extremely sensitive to low light levels, making them responsible for scotopic (dim-light) vision.
What is the function of the inferior oblique muscle?
Answer: Elevates and extorts the eye
The inferior oblique primarily elevates the eye and has secondary actions of extorsion and abduction.
Descemet's membrane is located between which two corneal layers?
Answer: Stroma and endothelium
Descemet's membrane is the basement membrane of the corneal endothelium, situated between the stroma and the endothelial cell layer.