Podcast
Questions and Answers
What is the main function of the circularly arranged sphincter pupillae?
What is the main function of the circularly arranged sphincter pupillae?
- Increases pupil diameter
- Supports nonvisual retina
- Reinforces light-absorbing property of the choroid
- Decreases pupil diameter (correct)
Which muscle is responsible for dilating the pupil?
Which muscle is responsible for dilating the pupil?
- Circularly arranged sphincter pupillae
- Radially arranged dilator pupillae (correct)
- Optic part of the retina
- Nonvisual part of the retina
What is the main function of the pigmented layer in the retina?
What is the main function of the pigmented layer in the retina?
- Reinforces light-absorbing property of the choroid (correct)
- Increases pupil diameter
- Supporting cells
- Decreases pupil diameter
Which part of the retina extends over the ciliary body and iris?
Which part of the retina extends over the ciliary body and iris?
What are the two functional parts of the optic part of the retina?
What are the two functional parts of the optic part of the retina?
Which muscle decreases its diameter to constrict or contract the pupil?
Which muscle decreases its diameter to constrict or contract the pupil?
What is responsible for the 'red eye' reflection in flash photography?
What is responsible for the 'red eye' reflection in flash photography?
Which part of the eye connects the choroid with the circumference of the iris?
Which part of the eye connects the choroid with the circumference of the iris?
What fills the anterior segment of the eyeball, suspensory ligament, and ciliary body?
What fills the anterior segment of the eyeball, suspensory ligament, and ciliary body?
Which structure on the internal surface of the ciliary body secretes aqueous humor?
Which structure on the internal surface of the ciliary body secretes aqueous humor?
What is the central aperture in the iris called?
What is the central aperture in the iris called?
What controls the thickness and focus of the lens in the eye?
What controls the thickness and focus of the lens in the eye?
What nerve provides innervation to the cornea?
What nerve provides innervation to the cornea?
Which layer of the eyeball is responsible for nourishing the avascular cornea?
Which layer of the eyeball is responsible for nourishing the avascular cornea?
What causes severe pain when small foreign bodies are in contact with the cornea?
What causes severe pain when small foreign bodies are in contact with the cornea?
Where is the limbus of the cornea located?
Where is the limbus of the cornea located?
Which layer forms the largest part of the vascular layer of the eyeball?
Which layer forms the largest part of the vascular layer of the eyeball?
What is responsible for supplying the light-sensitive layer of the retina with oxygen and nutrients?
What is responsible for supplying the light-sensitive layer of the retina with oxygen and nutrients?
What is the function of the central retinal artery in the retina?
What is the function of the central retinal artery in the retina?
Which structure appears darker at the posterior pole of the eyeball?
Which structure appears darker at the posterior pole of the eyeball?
How are the layers of the developing retina separated in the embryo?
How are the layers of the developing retina separated in the embryo?
What is the significance of detachment of the retina?
What is the significance of detachment of the retina?
What is the function of an ophthalmoscope in examining the eye?
What is the function of an ophthalmoscope in examining the eye?
Where do retinal arteries and veins radiate from over the fundus in the eye?
Where do retinal arteries and veins radiate from over the fundus in the eye?
What is the function of the fibrous layer of the eyeball?
What is the function of the fibrous layer of the eyeball?
Which part of the eye is visible through the transparent bulbar conjunctiva as 'the white of the eye'?
Which part of the eye is visible through the transparent bulbar conjunctiva as 'the white of the eye'?
How does the convexity of the cornea compare to that of the sclera?
How does the convexity of the cornea compare to that of the sclera?
From where does the cornea receive its nourishment?
From where does the cornea receive its nourishment?
Which part of the eye covers the posterior five sixths of the eyeball?
Which part of the eye covers the posterior five sixths of the eyeball?
What provides attachment for both extrinsic and intrinsic muscles of the eye?
What provides attachment for both extrinsic and intrinsic muscles of the eye?
