Working of eye, Biology

Assignment Help:

WORKING OF EYE -

Human eye is sensitive to light wavelenght ranging from 380 - 760 nm.

Bees, ants, spiders and gold fish can see uttraviolet light which is invisible to human.

It has 2 functional parts -

1. Focussing part or dioptic -

It consists of conjunctiva, cornea, aquous humour, lens, vitrous humour. They refrect the light rays to bring them on the retina. Maximum refrection is caused by cornea.

2. Receptor part -

It comprises of retina. Here inverted and smaller image is formed.

In man Binocular or steroscpic vision is formed due to position of eyes i.e. close to each other.

In rabbit and other animals except primates monocular or panoramic image is formed.


Related Discussions:- Working of eye

Zoonotic diseases-influenza, Influenza Influenza is an acute infectious di...

Influenza Influenza is an acute infectious disease caused by influenza viruses of genus Orthomyxovirus in family Orthomyxoviridae. The name Influenza is derived from an Italian ph

Why are shapes of squamous cells different, How do the cheek and onion cell...

How do the cheek and onion cells visually resemble one another, and why are shapes of squamous cells so different than the onion cells?

Bovine ephemeral fever, Bovine ephemeral fever Ephemeral fever is commonly...

Bovine ephemeral fever Ephemeral fever is commonly known as 'three-day sickness'. It affects mainly cattle and occasionally sheep in India. Causative agent is a mosquito-borne vir

Define changes in body composition due to microgravity, Define Changes in B...

Define Changes in Body Composition due to Microgravity? Major stress in space is microgravity. Microgravity refers to an environment in which there is very little net gravitat

Byproducts of low digestibility high in nitrogen, Byproducts of the food i...

Byproducts of the food industry, such as coffee residues, fruit pulp and cocoa meal are of low energy value, but are relatively high in nitrogen. In additional, animal excreta tend

Major renal processes that combined produce urine, Q. What are the three ma...

Q. What are the three major renal processes that combined produce urine? Urine is made by the occurrence of three processes in the nephron that are tubular resorption, glomerul

Why bacteria called extremophiles, Bacteria called extremophiles are able t...

Bacteria called extremophiles are able to grow in hot springs such as Old Faithful at Yellowstone National Park in Wyoming. Do you think that the DNA of extremophiles would have a

Aerotolerant anaerobes, Aerotolerant anaerobes are incapable of aerobic res...

Aerotolerant anaerobes are incapable of aerobic respiration, but can nevertheless grow in the presence of air. Many lactic acid bacteria fall into this category. They can only gene

How is the genetic determination of sex established in human, How is the ge...

How is the genetic determination of sex established in humans? In the diploid genome of human beings there are 46 chromosomes, 44 of them are autosomes and two are sex chromoso

TISSUES, HOW TO WRITE A CONCLUSION ON A ASSIGNMENT OF EPITHELIAL TISSUES

HOW TO WRITE A CONCLUSION ON A ASSIGNMENT OF EPITHELIAL TISSUES

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd