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

To study whether bacteria grow best where it is moist or dry, To study whet...

To study whether bacteria grow best where it is moist or dry Use 2 sterile dishes. Inoculate each one by touching a sterile transmit needle to a bacteria colony rowing in anoth

Explain H - shaped incision, Q. Explain H - Shaped Incision? This type ...

Q. Explain H - Shaped Incision? This type of incision is especially useful for: The anterior maxilla or mandible. Accurately identified implant position. Exposure o

Avian (fowl cholera), Avian (fowl cholera) Fowl cholera is a contagious...

Avian (fowl cholera) Fowl cholera is a contagious septicaemic disease of almost all classes of fowl. The causal agent is Pasteurella multocida.Serotypes A:1 and A:3 are usually

Define absorption, Define Absorption, Storage and Elimination of vitamins? ...

Define Absorption, Storage and Elimination of vitamins? Reading through this section you would realize that all fat-soluble vitamins undergo similar metabolic fate. They are a

Define the concept of nutrition, Define the Concept of Nutrition? Nutri...

Define the Concept of Nutrition? Nutrition may be defined as the science of food and its relationship to health. It is concerned primarily with the past played by nutrients in

Explain about spring model, Q. Explain about Spring Model ? The spring ...

Q. Explain about Spring Model ? The spring model depicts elasticity. A force is applied in terms of load onto the spring as illustrated in the figure 8.6. When the force is app

What is the importance of vitamin B6, What is the Importance of vitamin B 6...

What is the Importance of vitamin B 6 In the human and animal organisms, vitamin B 6 acts in the form of pyridoxal. In the form of 5'-orthophosphate (Pyridoxal-5'-phosphate),

Basic concepts of earthquake resistant structures, The aim of earthquake-re...

The aim of earthquake-resistant structure designing The main objectives of earthquake resistant structures are as follows: (i)     To avoid loss of lives due to the destruct

Poultry and duck diseases-hydropericardium syndrome, Hydropericardium syndr...

Hydropericardium syndrome Hydropericardium syndrome (HPS), known as Leechi disease, is caused by Avian Adenovirus 4. HPS has been responsible for high mortality ranging from 6

What is the prevailing wind direction, what is the prevailing wind directio...

what is the prevailing wind direction in equatorial regions affected by the trade winds? a) The wind blows from east to west b) the wind blows from west to east

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