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
Which layer of the cornea is responsible for maintaining corneal transparency through its pump function?
Answer: Endothelium
The corneal endothelium pumps excess fluid out of the stroma, keeping it dehydrated and optically clear.
The fovea centralis, the area of sharpest central vision, is located within which retinal region?
Answer: Macula lutea
The fovea centralis sits at the center of the macula lutea and contains the highest concentration of cone photoreceptors.
Which muscle is responsible for constricting the pupil in response to bright light?
Answer: Sphincter pupillae
The sphincter pupillae is innervated by the parasympathetic nervous system and contracts to reduce pupil size (miosis).
Aqueous humor is produced by which ocular structure?
Answer: Ciliary body
The ciliary body secretes aqueous humor, which fills the anterior and posterior chambers of the eye.
The optic nerve exits the eye through an opening called the:
Answer: Optic disc
The optic disc, also known as the blind spot, is the point where the optic nerve exits the globe and has no photoreceptors.
Rod photoreceptors are primarily responsible for which type of vision?
Answer: Low-light and peripheral vision
Rods are highly sensitive to light and are concentrated in the peripheral retina, making them essential for scotopic (dim-light) and peripheral vision.