To discuss:
Optical components of the eye.
Introduction:
The perception of items that are present in the surroundings is termed as sight or vision. This perception occurs by means of reflection or emission of light from those objects. The retina, the neural component, is one of the principle components of the eyeball. It consists of three cell layers, and these cell layers are composed of ganglion cells, bipolar cells, and photoreceptor cells. The photoreceptor cells are involved in the absorption of light and produce a chemical or an electrical signal. These cells are of three kinds namely cones, rods, and some ganglion cells. These cone and rod cells generate visual images, and these cells are related to ependymal cells located in the brain.
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Chapter 16 Solutions
ANATOMY & PHYSIOLOGY THE UNITY OF FORM A
- Binocular vision.When the right eye is covered,the pencil on the right seemingly disappears. True or Falsearrow_forwardDefine depth perceptionarrow_forwardVestibular duct Tectorial membrane Spiral ganglion Cochlear duct Hair cells Vestibular membrane Spiral organ (organ of Corti) Tympanic duct Basilar membranearrow_forward
- Iris Choroid Central retinal artery and vein Cornea Optic nerve Vitreous chamber Central retinal artery and vein Ciliary body Lens Conjunctiva Retina Cornea Iris Lensarrow_forwardWhy the eye is unable to see distant objects clearly?arrow_forwardHow and why glaucoma and macular degeneration affect vision. Compare Figure(a) and (b) and identify whether the visual field in (b) is representative of a person with macular degeneration or glaucoma.arrow_forward
- Human Physiology: From Cells to Systems (MindTap ...BiologyISBN:9781285866932Author:Lauralee SherwoodPublisher:Cengage LearningHuman Biology (MindTap Course List)BiologyISBN:9781305112100Author:Cecie Starr, Beverly McMillanPublisher:Cengage Learning
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