Explain the structure and the working of human eye. ; Pupil:The black circular opening in the iris that lets light in. As soon as the eye moves, it re-adjusts its exposure, both chemically and geometrically, by … Characteristics of the HUMAN EYE (What can be seen from the outside) Structure. Discussion in 'CBSE Class 10 Natural Science Help' started by Vinila Choudary, Jan 26, 2012. In this article, we explain their anatomy, how they work, and describe some conditions that affect the eyes. The given figure shows the structure of the human eye. Structure of Human eye:. The eyes are incredibly complex organs. While we can only see the visible portion of the sclera, it actually surrounds the entire eye and provides structure for the internal contents of the eye, which are mostly made up of a thick liquid called the vitreous humor. The Choriod is modified to form the Iris and the Ciliary Body at the front of the eye. Tear gland. The human eye belongs to a general group of eyes found in nature called "camera-type eyes. Each human eye sizes for approximately 2.5 cm in diameter. Human Eye: working of human eye, Persistence of vision, Power of accommodation of human eye, Defects of vision. This article explores the anatomy of the eye looking at the different structures of the human eye and their function. Log in. Dissecting a cow eye was the ABSOLUTE worst part of my VI coursework in learning about the structure & function of the eye. The Human Eye and Its Structure ‘Human Eye’ is the organ of vision of the human body that enables us to see. Without all the parts, no mice can be caught. The human eye. The human eye can distinguish about 10 million colors. The human eye works on the refraction of light through a natural convex lens made of transparent living material and enables us to see things around us. Join now. Evolution of the Eye: When evolution skeptics want to attack Darwin's theory, they often point to the human eye. He states that the eye is an irreducibly complex organ. Human Eye Accommodation Accommodation of the eye refers to the physiological act of adjusting crystalline lens elements to alter the refractive power and bring objects that are closer to the eye into sharp focus. Explain the structure and functioning of human eye. The human eye(s) are located in the specialized sockets carved out in the human skull. Location: it is situated on an orbit of skull and is supplied by optic nerve. The human eye is the natural convex lens that refracts light. It's also transparent, so the light is able to just flow right through. This tutorial explores changes in the lens structure as objects are relocated with respect to the eye. Students learn about the anatomical structure of the human eye and how humans see light, as well as some causes of color blindness. The various parts of eye and their functions : The human eye is an incredibly complex organ with a multitude of distinctive parts that make up its anatomy and with each performing a specific function. The term gross anatomy of the eye pertains to the structures that are visible when looking at an eye, and there are also many parts that can't be seen under normal circumstances. Ans. There are 6 sets of muscles attached to outer surface of eye ball which helps to rotate it in different direction. The eye enables us to see the various objects around us. The most sensitive part of the retina is a small area called the macula, which has millions of tightly packed photoreceptors (the type called cones).The high density of cones in the macula makes the visual image detailed, just as a high-resolution digital camera has more megapixels. 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