Eye Anatomy: Parts of the Eye and How We See
网页2023年4月29日 · Eye Anatomy: Parts of the Eye Outside the Eyeball. The eye sits in a protective bony socket called the orbit. Six extraocular muscles in the orbit are attached to the eye. These muscles move the eye up and down, side to side, and rotate the eye. The extraocular muscles are attached to the white part of the eye called the sclera. This is a ...
Eyeball: Structure and function - Kenhub
网页2023年11月3日 · The eyeball consists of three layers; fibrous, vascular and nervous (retina). Functionally, the most important layer is the retina, which receives the external visual stimuli. The posterior pole of the eyeball is connected with the optic nerve (CN II), which conveys the information from the retina to the brain.
The Eyeball - Structure - Vasculature - TeachMeAnatomy
网页2021年3月20日 · The eyeball is a bilateral and spherical organ, which houses the structures responsible for vision. It lies in a bony cavity within the facial skeleton – known as the bony orbit. Anatomically, the eyeball can be divided into three parts – the fibrous, vascular and inner layers. In this article, we shall consider the anatomy of the eyeball ...
Anatomy of the Eye - Johns Hopkins Medicine
网页Anatomy of the Eye. Eyes. Anterior chamber. The front section of the eye's interior where aqueous humor flows in and out, providing nourishment to the eye. Aqueous humor. The clear watery fluid in the front of the eyeball. Blood vessels. Tubes (arteries and veins) that carry blood to and from the eye. Caruncle.
Human eye - Wikipedia
网页The outermost layer, known as the fibrous tunic, is composed of the cornea and sclera, which provide shape to the eye and support the deeper structures. The middle layer, known as the vascular tunic or uvea , consists of the choroid , ciliary body …
Human eye | Definition, Anatomy, Diagram, Function, & Facts
网页2024年8月18日 · Human eye, specialized sense organ in humans that is capable of receiving visual images, which are relayed to the brain. The anatomy of the eye includes auxiliary structures, such as the bony eye socket and extraocular muscles, as well as the structures of the eye itself, such as the lens and the retina.
Structure and Function of the Eyes
网页The structures and functions of the eyes are complex. Each eye constantly adjusts the amount of light it lets in, focuses on objects near and far, and produces continuous images that are instantly transmitted to the brain. The orbit is the bony cavity that contains the eyeball, muscles, nerves, and blood vessels, as well as the structures that ...
Eyeball | Structure, Function & Muscles | Britannica
网页eyeball, spheroidal structure containing sense receptors for vision, found in all vertebrates and constructed much like a simple camera. The eyeball houses the retina —an extremely metabolically active layer of nerve tissue made up of millions of light receptors (photoreceptors)—and all of the structures needed to focus light onto it.
Basic Histology of the Eye and Accessory Structures
网页Internal Structures of the Eye. The eyeball is composed of three principal layers: the fibrous tunic, the vascular tunic, and the neural tunic. The fibrous tunic is the outer layer, consisting of the sclera and cornea. The vascular tunic, also called the uvea, consists of the iris, the ciliary body, and the choroid.
Eyeball: structure and function (preview) - Human Anatomy
网页2020年11月30日 · The eyeball is a spheroidal structure in the orbital cavity that occupies most of the anterior part of the orbit (bony orbital socket of the skull). Watch the full version of this video to...