Скачать с ютуб Structure of the Human eye | Human eye and the colorful world | Physics | Infinity Learn NEET в хорошем качестве

Structure of the Human eye | Human eye and the colorful world | Physics | Infinity Learn NEET

What is it that helps us see things around us? Our eyes! What happens inside the human eye when light rays enter it? What does its structure look like? Watch this video to know the answers! To access all videos related to Human Eye, enroll in our full course now: https://tinyurl.com/DM-OneMonth To watch more Physics videos, click here: https://bit.ly/PhysicsVideos_DMYT Infinity Learn brings learning to life through its captivating educational videos #HumanEye #HumanEYEStructure #InfinityLearn #neet2024 #infinityLearnNEET #exam neetsyllabus #neet2025 Here's a detailed overview of the human eye at the NEET (National Eligibility Entrance Test) level, focusing on the anatomy, physiology, and important aspects relevant to the examination: 1. External Structures of the Eye Cornea: The transparent, dome-shaped structure that covers the front of the eye. It helps focus light entering the eye. It has no blood vessels, and its primary function is to bend (refract) light towards the retina. Sclera: The tough, white outer layer of the eye. It provides structural support and protection to the eye. It is continuous with the cornea at the front and the optic nerve at the back. Conjunctiva: A thin, transparent membrane that covers the sclera and the inner surface of the eyelids. It helps protect the eye from dust and foreign particles and keeps the eye moist. Pupil: The black circular opening in the center of the iris. It controls the amount of light entering the eye by adjusting its size (constricting or dilating). Iris: The colored part of the eye, located around the pupil. It contains muscles that regulate the size of the pupil, controlling the amount of light entering the eye. Eyelids and Lashes: Eyelids protect the eye from foreign objects and regulate the amount of light entering. #HumanEye #EyeAnatomy #Vision #EyeHealth #Optics #Retina #Cornea #OpticNerve #EyeCare #VisionScience #EyeDisorders #Optometry #EyeKnowledge #Biology Eyelashes help to trap dust and debris from the environment. 2. Internal Structures of the Eye Lens: A transparent, flexible, and curved structure located behind the iris and pupil. It focuses light onto the retina and changes its shape (accommodation) to focus on objects at various distances. Ciliary Body: Located around the lens, it contains ciliary muscles that control the shape of the lens for focusing. It also produces the aqueous humor. Aqueous Humor: A clear fluid produced by the ciliary body. It fills the anterior chamber of the eye (between the cornea and lens). It maintains intraocular pressure and nourishes the eye structures. Vitreous Body: A gel-like substance filling the space between the lens and retina. It helps maintain the shape of the eye and provides structural support. Retina: The innermost layer of the eye where light is detected. It contains photoreceptor cells, namely rods and cones. The retina converts light into electrical signals, which are transmitted to the brain via the optic nerve. Macula: A small, specialized area in the retina responsible for sharp, central vision. Fovea Centralis: The central part of the macula where cone cells are densely packed, providing the clearest vision. Optic Nerve: A bundle of nerve fibers that transmits visual information from the retina to the brain. 3. Photoreceptor Cells Rods: They are sensitive to low light and are responsible for vision in dim light (scotopic vision). They do not detect color but are important for night vision. Cones: They are responsible for color vision and visual acuity (sharpness of vision) in bright light (photopic vision). Cones are concentrated in the fovea and come in three types, each sensitive to red, green, or blue light. 4. Visual Pathway 1. Light enters the eye through the cornea and pupil. 2. It is focused by the lens onto the retina. 3. The photoreceptors (rods and cones) in the retina convert light into electrical impulses. 4. These impulses are transmitted via the optic nerve to the brain, where they are processed into visual images. 5. Eye Function: Vision Process Accommodation: The process by which the lens changes its shape to focus on objects at varying distances. Ciliary muscles adjust the curvature of the lens for near or distant vision. Refraction: Light is bent by the cornea and lens to focus on the retina, allowing for clear vision. Image Formation: The image formed on the retina is inverted and reduced in size, but the brain processes it to make it appear upright. 6. Common Disorders and Defects of the Eye ❤️ Youtube    / @mathglobalstudies12   ❤️ Instagram   / math_global_studies_2.0   ❤️ Facebook   / profile.php   🎯 7 day time table class 10th    • Last 7 Days ✋ Don't Waste Your Time. ...