Water is an important component of the human body, and the water content is different in different parts of the body. In the human body, the organ with the highest percentage of water is the eyeball. The water content in the eyeball even reaches 99%. It can be said that the eyeball is basically composed of water. So, what are the characteristics of the eyeball? Below, I will introduce you to the relevant knowledge about the eyeball in detail. 1. Which organ in the human body has the highest percentage of water? eyeball. The water content of different organs in the human body varies greatly. For example, the water content of the human eyeball is 99%, blood 85%, muscles 76%, and bones 22%. The eyeball is located in the eye socket, is spherical, and is protected by eye muscles around it. The optic nerve connects to the brain at the back. The eyeball is composed of the eyeball wall and the eyeball contents. 2. Introduction to the Eyeball The eyeball is a group of colorless, transparent refractive structures inside the eye, including the lens, aqueous humor and vitreous body, which together with the cornea constitute the refractive system of the eye. Structure: Eyeball Wall and Contents The roughly spherical main part of the vertebrate eye consisting of the sclera, cornea, and their contents. Located in the eye socket, the optic nerve connects to the brain at the rear end. The structure of the eyeball is divided into two parts: the eyeball wall and the contents. 3. Eyeball Contents Lens: It is a biconvex lens, transparent and elastic, located between the iris and the vitreous body. The periphery is connected to the ciliary processes by the lens ligament. Its essence is composed of multiple layers of fibers. If the curvature of the lens is too large, the image will fall in front of the retina, causing myopia; if the curvature of the lens is too small, the image will fall behind the retina, causing hyperopia. Aqueous humor and eye chamber: The eye chamber is the cavity between the cornea and the lens, which is divided into the anterior chamber and the posterior chamber by the iris. Aqueous humor is a colorless, transparent liquid that fills the eye chamber. It is mainly secreted by the ciliary body and then seeps into the scleral venous sinus at the periphery of the anterior chamber of the eye and reaches the ophthalmic vein. Aqueous humor has the functions of transporting nutrients and metabolites, refracting light and regulating intraocular pressure. Vitreous body: It is a colorless, transparent, jelly-like substance that fills the space between the lens and the retina and is covered by a transparent vitreous membrane. In addition to its refractive function, the vitreous body also supports the retina. The refractive apparatus of the eye: It is composed of four parts: the cornea, aqueous humor, lens and vitreous body. Their common characteristics are that they are colorless, transparent and allow light to pass through, so they are collectively called the refractive apparatus of the eye. Lesions in any part of the eye can affect vision and cause refractive errors, such as myopia or hyperopia. |
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