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

Explain complex or undefined media, Explain Complex or Undefined Media? ...

Explain Complex or Undefined Media? Here, the exact composition of the medium is not known. It contains some complex components of plant and animal extracts whose exact chemica

Explain adverse effects of ganciclovir, Explain Adverse Effects of ganciclo...

Explain Adverse Effects of ganciclovir Ganciclovir is teratogenic, carcinogenic and mutagenic and causes aspermatogenesis in animals. Granulocytopenia and thrombocytopenia, whi

............., notochotr is absent in the group ...........

notochotr is absent in the group ...........

Hemoglobin, describe the mechanism of allosteric change.

describe the mechanism of allosteric change.

Explain the nutrition of women during pregnancy, Explain the Nutrition of W...

Explain the Nutrition of Women during Pregnancy? During the post-war years, the people in the developed world recognized that women were at a disadvantaged position and felt th

Explain bidirectional superior vena cavo, Explain Bidirectional Superior ve...

Explain Bidirectional Superior vena cavo pulmonary shunt bidirectional glenn "This is a palliative produce where blood from superior vena cava is diverted to the pulmonary arter

What do you mean by cori cycling, What do you mean by Cori Cycling? In ...

What do you mean by Cori Cycling? In this cycle, glucose released by peripheral tissues is metabolized to lactate, which is then resynthesized to glucose in the liver. This pro

Explain the endochondral ossification, Explain the endochondral ossificatio...

Explain the endochondral ossification The second type of osteogenesis is endochondral ossification. This process is different from intramembranous ossification in that it occur

Health benefits of dietary factors - antinutritional effect, Define Health ...

Define Health Benefits of Other Dietary Factors with Antinutritional Effects? Despite the predominantly nutritional antagonistic effects of the factors described above, there i

The eye refract the light, Which parts of the eye refract ('bend') the ligh...

Which parts of the eye refract ('bend') the light in such a way as to form an image on the retina?   The curved surface of the cornea, and the aqueous humour enclosed by it,

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