Human Eye Anatomy Quiz

<p>Refraction of light (A)</p> Signup and view all the answers

<p>Bipolar neurons (B)</p> Signup and view all the answers

<p>Zonule (B)</p> Signup and view all the answers

<p>Hyalocytes (D)</p> Signup and view all the answers

<p>Inner aspect of the ciliary body (C)</p> Signup and view all the answers

<p>Outer nuclear layer (A)</p> Signup and view all the answers

<p>Low light sensitivity (C)</p> Signup and view all the answers

<p>Outer plexiform layer (A)</p> Signup and view all the answers

<p>10 (C)</p> Signup and view all the answers

<p>Color spectrum (B)</p> Signup and view all the answers

<p>496 nm (C)</p> Signup and view all the answers

<p>Ganglion cell layer (B)</p> Signup and view all the answers

<p>Outer limiting membrane (C)</p> Signup and view all the answers

<p>It secretes aqueous humor. (C)</p> Signup and view all the answers

<p>Via the pupil to the anterior chamber. (A)</p> Signup and view all the answers

<p>Pupil (D)</p> Signup and view all the answers

<p>Posterior surface of the iris (C)</p> Signup and view all the answers

<p>The amount of pigment in the posterior pigmented epithelium and stroma of the iris. (C)</p> Signup and view all the answers

<p>They provide structural support. (B)</p> Signup and view all the answers

<p>It facilitates the secretion of aqueous humor. (D)</p> Signup and view all the answers

<p>Their eyes appear pink due to visible blood vessels. (C)</p> Signup and view all the answers

<p>To drain the aqueous humor (B)</p> Signup and view all the answers

<p>It consists of flattened bundles of type I collagen fibers. (B)</p> Signup and view all the answers

<p>Simple squamous epithelium (C)</p> Signup and view all the answers

<p>Elastic fibers sandwiched between collagen layers (B)</p> Signup and view all the answers

<p>Ciliary body (A)</p> Signup and view all the answers

<p>By diffusion from limbal vessels and aqueous humor (A)</p> Signup and view all the answers

<p>It is rich in connective tissue cells and blood vessels. (A)</p> Signup and view all the answers

<p>Sclera (D)</p> Signup and view all the answers

<p>Inner limiting layer (C)</p> Signup and view all the answers

<p>Aiding in visual accommodation (C)</p> Signup and view all the answers

<p>Outer nuclear layer (C)</p> Signup and view all the answers

<p>Loose, vascular connective tissue (A)</p> Signup and view all the answers

<p>Two (A)</p> Signup and view all the answers

<p>Ciliary processes (C)</p> Signup and view all the answers

<p>Outer limiting layer (C)</p> Signup and view all the answers

<p>Absorption of excess light and support for photoreceptors (A)</p> Signup and view all the answers

<p>Light reception (A)</p> Signup and view all the answers

<p>Tunica vasculosa (C)</p> Signup and view all the answers

<p>Anterior chamber, posterior chamber, vitreous chamber (D)</p> Signup and view all the answers

<p>Sclera (A)</p> Signup and view all the answers

<p>It consists of an organized array of collagen bundles. (A)</p> Signup and view all the answers

<p>It contains microvilli projecting into the tear film. (C)</p> Signup and view all the answers

<p>Anterior limiting (Bowmann's) membrane (A)</p> Signup and view all the answers

<p>Stratified squamous epithelium (B)</p> Signup and view all the answers

The outermost layer of the eye, composed of the transparent cornea and the opaque sclera.

The transparent, convex front part of the eye, responsible for focusing light.

The opaque, white part of the eye that covers the majority of its surface.

The junction between the cornea and the sclera.

The outermost layer of the cornea, a stratified squamous epithelium responsible for regenerating new cells.

The basement membrane of the anterior epithelium, providing structural strength to the cornea.

The thickest layer of the cornea, composed of organized collagen bundles, responsible for corneal transparency.

The inner layer of the cornea, a thin, homogenous layer made of interwoven collagen fibers.

The transparent outer layer of the eye, responsible for focusing light onto the retina. It has three layers: epithelium, stroma, and endothelium.

The innermost layer of the cornea, composed of simple squamous epithelium with cells involved in active transport and protein synthesis.

A non-cellular layer of the cornea, composed of a thick, tightly organized, fibrous network.

The white, opaque layer of the eye, composed of dense connective tissue. It maintains the eye's shape, and protects the delicate internal structures.

The highly vascularized transition zone between the cornea and sclera.

An irregular endothelium-lined space within the limbus that drains aqueous humor from the eye.

The vascular, pigmented layer of the eye that lies beneath the sclera. It is responsible for absorbing excess light and providing nourishment to the retina.

A thin, transparent membrane that separates the choroid from the retina. It consists of three layers: elastic fibers in the middle, and collagen layers on each side.

A vascular and pigmented layer located between the sclera and the retina, supplying blood to the eye and absorbing stray light.

A thin layer of extracellular material found between the choroid and the retina, acting as a barrier and supporting the retinal pigment epithelium.

A single layer of cuboidal epithelial cells containing melanin, located at the outer layer of the retina, absorbing stray light and maintaining a dark environment for photoreceptor function.

Specialized cells in the retina responsible for detecting light and converting it into nerve signals.

A layer in the retina where the cell bodies of rods and cones are located, essential for receiving and processing visual information.

The middle part of the uveal tract, extending from the ora serrata to the root of the iris, responsible for regulating the shape of the lens for focusing.

Two bundles of smooth muscle fibers within the ciliary body, contributing to focusing by changing the shape of the lens.

Ciliary processes are responsible for the production and circulation of aqueous humor, the fluid that fills the eye's anterior and posterior chambers.

The fibers of the suspensory ligament attach to the ciliary processes, which in turn anchor the lens inside the eye.

Aqueous humor is secreted by the non-pigmented epithelial cells of the ciliary processes. It is a fluid similar to plasma but with a lower protein content.

Aqueous humor flows through the pupil from the posterior chamber to the anterior chamber, providing nutrients to the cornea. It then drains through the canal of Schlemm.

The iris is the colored part of the eye, responsible for controlling the amount of light entering the pupil.

The anterior surface of the iris is made of discontinuous layers of fibroblasts and melanocytes.

The stroma of the iris is a loose connective tissue with a vascular posterior zone and a less vascularized anterior zone.

The posterior surface of the iris is covered by two epithelial layers, similar to those found in the ciliary body. The pigmentation of these layers determines eye color.

The lens is a clear, biconvex structure in the eye that focuses light onto the retina. It's flexible, but this flexibility decreases with age.

The lens capsule is the outer layer of the lens, made of a thick, clear, refractile material. It's like the protective coating of the lens.

The subcapsular epithelium is a layer of cells lining the front of the lens capsule. These cells are responsible for making new lens fibers.

Lens fibers are long, thin, flattened cells that make up the bulk of the lens. They have no nuclei or organelles and are filled with crystallins, proteins that help with light refraction.

Also known as the zonules, these are fibers that connect the ciliary processes to the lens capsule, helping to change the shape of the lens for focusing.

A transparent gel that fills the space between the lens and the retina, it consists primarily of water with hyaluronate and small amounts of collagen. It helps maintain the eye's shape.

The retina has two main layers: the neural retina (inner layer) and the retinal pigment epithelium (outer layer). The neural retina contains photoreceptor cells (rods and cones) that detect light.

The retinal pigment epithelium (RPE) rests on the choroid and is firmly attached to it through Bruch's membrane. It helps absorb light and nourish the photoreceptor cells.

Photoreceptor cells with short neuritic processes, named for their Greek roots meaning "non", "long", and "fiber".

A supportive cell in the retina that is responsible for providing structural support and nutrition to the retina.

The outermost layer of the retina containing pigment cells that absorb excess light and help to recycle photoreceptor components.

The layer of the retina containing the outer and inner segments of photoreceptor cells, responsible for capturing light.

The apical boundary of Müller's cells, marking the top of the outer nuclear layer.

The layer of the retina containing the cell bodies of retinal rods and cones.

The layer of the retina containing the processes of photoreceptor cells and connections to other retinal cells like horizontal, amacrine, and bipolar cells.

The layer of the retina containing the nuclei of horizontal, amacrine, bipolar, and Müller's cells.