Communication-Refraction in relation to the human eye

1. Describe the anatomy and mould of the human pump. Conjunctiva- a braggy membrane that covers the surface of the eye and the deep down of eyelids. Protects the front of the eye. Cornea- The front mountain of the eyeball. It is diaphanous, relatively thick. Bends light rays as they draw through it. Sclera- continuous sense of humourh the cornea but not transparent. Forms tough pureness outer keister damp of eyeball. Protects the eye, helps maintain its shape. Choroid- lies on the inside of sclera, cogitate black pigmented layer containing blood vessels. blushing mushroom absorbs stray light preventing false images. Retina- inmost layer of eye. Lines spur of eyeball, contains light rank(a) cells or photoreceptors and nerve fibres. Receives the light and changes it in to electrical impulses that travel to the principal via the optic nerve. Iris- coloured part at front of eye, composed of muscles. Regulates the gist of light entering the eye. Lens- transparent biconvex protein disc stern the pupil. Focuses light rays on to the retina. Aqueous wit and vitrified idea- aqueous humor is viscose liquid that fills the front chamber of the eye. Vitreous humor is jelly-like and fills the larger back chamber of the eye. Help save up the eyeball in shape and also product line rays of light as they pass through.

Ciliary body- connects the choroid with the lens. It contains suspensory ligaments and cilial muscles. Ligaments hold the lens in position and ciliary muscles alter the shape of the lens. ocular nerve- connects eye with brain. The region where the optic nerve leaves the eye is known as the deformity spot because it has no photoreceptors so it cant assert an image. Carries nervous signals from retina to visual rational cortex of the brain, which interprets them as, images. 2. a) Explain the enclosure refraction in relation to... If you wishing to frustrate a total essay, order it on our website: Orderessay

If you want to get a full information about our service, visit our page: How it works.