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anatomy_of_the_human_eye [2023/02/01 23:23] – [Vitreous Humour] tomanatomy_of_the_human_eye [2023/03/06 09:11] (current) – Remove socialite tom
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 +{{tag>Anatomy}} 
 ======Anatomy of The Eye====== ======Anatomy of The Eye======
  
-The human eye[(Humaneye>Human eye[[https://en.wikipedia.org/wiki/Human_eye|Wikipedia]])] is a complex and delicate structure responsible for capturing and processing visual information. It is made up of several key components, each of which plays an essential role in the process of seeing.+The human eye[(Humaneye>Human eye[[https://en.wikipedia.org/wiki/Human_eye|Wikipedia]])][(anatomy>Category:Human eye anatomy[[https://en.wikipedia.org/wiki/Category:Human_eye_anatomy|Wikipedia]])] 
 + is a complex and delicate structure responsible for capturing and processing visual information. It is made up of several key components, each of which plays an essential role in the process of seeing.
  
 **Cornea**: The clear, curved front surface of the eye that helps to refract light and focus it onto the retina. **Cornea**: The clear, curved front surface of the eye that helps to refract light and focus it onto the retina.
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 =====The Retina===== =====The Retina=====
  
-The retina is a thin layer of tissue located at the back of the eye, covering approximately 65% of its inner surface. It is responsible for converting light into electrical signals that are transmitted to the brain, allowing us to see the world around us. The retina contains photoreceptor cells, called rods and cones, which are responsible for detecting light and transmitting signals to the brain.+The retina[(Retina>Retina[[https://en.wikipedia.org/wiki/Retina|Wikipedia]])] is a thin layer of tissue located at the back of the eye, covering approximately 65% of its inner surface. It is responsible for converting light into electrical signals that are transmitted to the brain, allowing us to see the world around us. The retina contains photoreceptor cells, called rods and cones, which are responsible for detecting light and transmitting signals to the brain.
  
 The retina has several important functions, including: The retina has several important functions, including:
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 =====The Optic Nerve===== =====The Optic Nerve=====
  
-The optic nerve is a bundle of over 1 million nerve fibers that connects the retina to the brain, transmitting visual signals from the eye to the brain. The optic nerve is responsible for transmitting the electrical signals generated by the photoreceptor cells in the retina to the brain, allowing us to see the world around us.+The optic nerve[(Optic_nerve>Optic nerve[[https://en.wikipedia.org/wiki/Optic_nerve|Wikipedia]])] is a bundle of over 1 million nerve fibers that connects the retina to the brain, transmitting visual signals from the eye to the brain. The optic nerve is responsible for transmitting the electrical signals generated by the photoreceptor cells in the retina to the brain, allowing us to see the world around us.
  
 The blind spot is a small area of the retina where the optic nerve and blood vessels enter and exit the eye, creating a gap in the photoreceptor cell layer. There are no photoreceptor cells in the blind spot, so the brain does not receive any signals from this area. However, our brain compensates for the blind spot by automatically filling in the missing information with surrounding visual information, so we are not typically aware of it. The blind spot is a small area of the retina where the optic nerve and blood vessels enter and exit the eye, creating a gap in the photoreceptor cell layer. There are no photoreceptor cells in the blind spot, so the brain does not receive any signals from this area. However, our brain compensates for the blind spot by automatically filling in the missing information with surrounding visual information, so we are not typically aware of it.
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 =====The Sclera===== =====The Sclera=====
  
-The sclera is the white, tough, outer layer of the eye that covers most of the eye's surface and helps to protect the inner structures of the eye. The sclera is composed of fibrous connective tissue and is the strongest and most protective layer of the eye.+The sclera[(Sclera>Sclera[[https://en.wikipedia.org/wiki/Sclera|Wikipedia]])] is the white, tough, outer layer of the eye that covers most of the eye's surface and helps to protect the inner structures of the eye. The sclera is composed of fibrous connective tissue and is the strongest and most protective layer of the eye.
  
 The sclera has several important functions, including: The sclera has several important functions, including:
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 =====The Choroid===== =====The Choroid=====
  
-The choroid is a layer of tissue located between the retina and the sclera, in the middle of the eye. It is composed of blood vessels and pigmented cells and helps to provide oxygen and nutrients to the retina and other parts of the eye.+The choroid[(Choroid>Choroid[[https://en.wikipedia.org/wiki/Choroid|Wikipedia]])] is a layer of tissue located between the retina and the sclera, in the middle of the eye. It is composed of blood vessels and pigmented cells and helps to provide oxygen and nutrients to the retina and other parts of the eye.
  
 The choroid has several important functions, including: The choroid has several important functions, including:
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 =====The Ciliary Body===== =====The Ciliary Body=====
  
-The ciliary body is a ring-shaped muscular structure located behind the iris in the eye. It has several important functions in the eye, including:+The ciliary body[(Ciliary>Ciliary body[[https://en.wikipedia.org/wiki/Ciliary_body|Wikipedia]])] is a ring-shaped muscular structure located behind the iris in the eye. It has several important functions in the eye, including:
  
   * **Controlling the Shape of the Lens**: The ciliary body is composed of smooth muscle fibers that control the shape of the lens, allowing us to focus on objects at different distances. When the ciliary muscle contracts, it changes the shape of the lens, making it more rounded and allowing us to focus on close objects. When the ciliary muscle relaxes, the lens becomes flatter, allowing us to focus on distant objects.   * **Controlling the Shape of the Lens**: The ciliary body is composed of smooth muscle fibers that control the shape of the lens, allowing us to focus on objects at different distances. When the ciliary muscle contracts, it changes the shape of the lens, making it more rounded and allowing us to focus on close objects. When the ciliary muscle relaxes, the lens becomes flatter, allowing us to focus on distant objects.
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   * **Maintaining Eye Pressure**: The ciliary body also helps to regulate the pressure inside the eye, which is important for maintaining good vision.   * **Maintaining Eye Pressure**: The ciliary body also helps to regulate the pressure inside the eye, which is important for maintaining good vision.
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  • Last modified: 2023/02/01 23:23
  • by tom