Anatomy of the Eyeball and 3 Tunics

The video provides a comprehensive overview of the eye's anatomy, focusing on its three main tunics: fibrous, vascular, and nervous. It explains the components and functions of each tunic, including the cornea, sclera, choroid, iris, pupil, lens, and retina. The video also covers the eye's chambers, the flow of light through the eye, and the role of photoreceptors. Additionally, it discusses the vitreous body and concludes with a brief mention of future topics on vision.

What is the primary way to identify the right eye from a superior view?

• The cornea is larger.

• The sclera is more visible.

• The optic nerve runs medially.

• The optic nerve runs laterally.

What are the two main components of the fibrous tunic?

• Cornea and iris

• Iris and pupil

• Sclera and choroid

• Cornea and sclera

Why is the cornea avascular?

• To maintain transparency

• To enhance color perception

• To allow for faster healing

• To provide structural support

What is the function of the choroid in the vascular tunic?

• To produce aqueous humor

• To absorb excess light

• To regulate eye pressure

• To focus light on the retina

How does the iris control the amount of light entering the eye?

• By moving the eyeball

• By adjusting the size of the pupil

• By changing the shape of the lens

• By altering the curvature of the cornea

What role do the suspensory ligaments play in the eye?

• They produce aqueous humor.

• They control the size of the pupil.

• They adjust the shape of the lens.

• They connect the cornea to the sclera.

What is the primary function of the lens in the eye?

• To produce vitreous humor

• To protect the eye from debris

• To focus light on the retina

• To regulate eye pressure

What are the two types of photoreceptors found in the retina?

• Iris and pupil

• Rods and cones

• Choroid and lens

• Sclera and cornea

What is the optic disc commonly known as?

• The vitreous body

• The blind spot

• The fovea centralis

• The macula lutea

What is the site of highest visual acuity in the retina?

• Anterior chamber

• Choroid

• Fovea centralis

• Optic disc