CPOT Ocular Anatomy & Physiology Flashcards
6 cards from real CPOT practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 CPOT Ocular Anatomy & Physiology flashcards as text
The crystalline lens of the eye focuses light by changing shape through a process called:
Answer: Accommodation
Accommodation is the process by which the ciliary muscle adjusts the curvature of the crystalline lens to focus on objects at varying distances.
Which coat of the eye is the vascular, pigmented middle layer that supplies oxygen to the outer retina?
Answer: Choroid
The choroid is the highly vascular middle layer of the eye that nourishes the outer retinal layers with oxygen and nutrients.
The anterior chamber of the eye is bounded anteriorly by the cornea and posteriorly by the:
Answer: Crystalline lens and iris
The anterior chamber is the fluid-filled space between the cornea in front and the iris and lens behind.
Normal intraocular pressure (IOP) typically ranges between:
Answer: 10–21 mmHg
A normal IOP is generally considered to be 10–21 mmHg; pressures consistently above 21 mmHg may indicate ocular hypertension or glaucoma risk.
The transparent, gel-like substance that fills the posterior segment of the eye between the lens and retina is the:
Answer: Vitreous humor
The vitreous humor is a clear, gel-like substance occupying the vitreous cavity and helps maintain the shape of the eye.
Which extraocular muscle is responsible for intorsion and depression of the eye?
Answer: Superior oblique
The superior oblique muscle, innervated by cranial nerve IV (trochlear), primarily intorts and depresses the eye when adducted.