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
What is the name of the blind spot in the visual field corresponding to the optic disc?
Answer: Physiological blind spot
The physiological blind spot corresponds to the optic disc, which has no photoreceptors where the optic nerve exits the eye.
The vitreous humor occupies which segment of the eye?
Answer: Vitreous chamber (posterior segment)
The vitreous humor fills the vitreous chamber, the large posterior segment of the eye between the lens and the retina.
Which structure is responsible for draining aqueous humor from the eye?
Answer: Trabecular meshwork and Schlemm's canal
Aqueous humor drains primarily through the trabecular meshwork into Schlemm's canal and then into episcleral veins.
The ora serrata marks the boundary between which two structures?
Answer: Retina and pars plana
The ora serrata is the serrated anterior border of the sensory retina where it meets the pars plana of the ciliary body.
Which coat of the eye provides structural rigidity and maintains the eye's shape?
Answer: Sclera
The sclera is the tough, fibrous outer coat of the eye that provides structural support and maintains the globe's shape.
How many layers does the corneal epithelium consist of?
Answer: 5–7 layers
The corneal epithelium is composed of 5–7 layers of non-keratinized squamous epithelial cells.
The medial rectus muscle is innervated by which cranial nerve?
Answer: CN III
The oculomotor nerve (CN III) innervates the medial rectus, superior rectus, inferior rectus, inferior oblique, and levator palpebrae superioris.