Draw a labeled diagram of human eye. Write the functions of Cornea, Iris, Pupil, eye lens and retina.

http://content.answcdn.com/main/content/img/oxford/Oxford_Body/019852403x.eyes.2.jpgHope it will help you!!!

  • 7

 

hope this helps u thumbs up!!!!!!!

  • -3

Eye

Figure 1 : Human Eye

  • 2


Labeled picture of the human eye.
 

 

 

 

 

 

 

 

 

 

 

FUNCTION :--

  • Cornea of the eye is the first sight where convergence of light rays takes place.
  • Iris is that part of the eye which controls the amount of light entering the eye through the pupil.
  • Pupil is a type of small hole through which light enters the eye.
  • The eye lens is a convex lens just behind the pupilwhich converges the light rays towards the ratina.
  • The ratina is a type of screen in the eye having light sensitive cells where the formation of image takes place.

  hope this helps.. :)

  • 27

 here the functions 

Cornea:  Cornea is transparent. It is responsible for the refraction of light rays towards the retina.

Iris: Iris is a dark, circular muscular diaphragm behind the cornea. It gives the eye its color. It also controls the pupil size and thus controls the amount of light entering the eye.

Pupil: Pupil is surrounded by the iris. It regulates and controls the amount of light entering the eye.

Retina: The retina is the innermost layer of the eye.  It contains an outer pigmented layer and an inner nervous layer which contains the photoreceptors (rods and cons).  Cone cells are coned shaped and Rod cells are rod shaped.

Optic nerve: The optic nerve connects the eye to the brain. The nerve fibers carry impulses from the retina to the visual cortex.

Eye lens: The eye lens is made up of a fibrous, jelly-like material. It is transparent and has biconvex structure. It forms an inverted real image of the object on the retina and also separates the aqueous and the vitreous humours.

Vitreous humour: Vitreous humour is clear, semi-solid solid supporting the eye ball.

 

hope it helps u

plzzzzzzz thumbs up

  • 139


Labeled picture of the human eye.
 

  • -2

Cornea: Cornea is transparent. It is responsible for the refraction of light rays towards the retina.

Iris: Iris is a dark, circular muscular diaphragm behind the cornea. It gives the eye its color. It also controls the pupil size and thus controls the amount of light entering the eye.

Pupil: Pupil is surrounded by the iris. It regulates and controls the amount of light entering the eye.

Retina: The retina is the innermost layer of the eye. It contains an outer pigmented layer and an inner nervous layer which contains the photoreceptors (rods and cons). Cone cells are coned shaped and Rod cells are rod shaped.

Optic nerve: The optic nerve connects the eye to the brain. The nerve fibers carry impulses from the retina to the visual cortex.

 

Eye lens: The eye lens is made up of a fibrous, jelly-like material. It is transparent and has biconvex structure. It forms an inverted real image of the object on the retina and also separates the aqueous and the vitreous humours.

Vitreous humour: Vitreous humour is clear, semi-solid solid supporting the eye ball.

  • 7

Cornea is transparent. It is responsible for the refraction of light rays towards the retina.

Iris: Iris is a dark, circular muscular diaphragm behind the cornea. It gives the eye its color. It also controls the pupil size and thus controls the amount of light entering the eye.

Pupil: Pupil is surrounded by the iris. It regulates and controls the amount of light entering the eye.

Retina: The retina is the innermost layer of the eye. It contains an outer pigmented layer and an inner nervous layer which contains the photoreceptors (rods and cons). Cone cells are coned shaped and Rod cells are rod shaped.

Optic nerve: The optic nerve connects the eye to the brain. The nerve fibers carry impulses from the retina to the visual cortex.

 

Eye lens: The eye lens is made up of a fibrous, jelly-like material. It is transparent and has biconvex structure. It forms an inverted real image of the object on the retina and also separates the aqueous and the vitreous humours.

Vitreous humour: Vitreous humour is clear, semi-solid solid supporting the eye ball.

Posted by arvindronaldo7...(student), on 29/10/12

  • 2

diagram of lungs for 5th class

  • -7

Labeled picture of the human eye.

  • -14
Hop dat will do... ryt
  • -7

 

The front part of the eye (the part you see in the mirror) includes:

  • The iris (the pigmented part)
  • The cornea (a clear dome over the iris)
  • The pupil (the black circular opening in the iris, which lets light in)
  • The sclera (the white part)
  • The conjunctiva (an invisible, clear layer of tissue covering the front of the eye, except the cornea)

Just behind the iris and pupil lies the lens, which helps to focus light on the back of the eye. Most of the eye is filled with a clear gel, called the vitreous. Light projects through the pupil and the lens to the back of the eye. The inside lining of the eye is covered by special light-sensing cells, together called the retina. The retina converts light into electrical impulses. Behind the eye, the optic nerve carries these impulses to the brain. The macula is a small sensitive area within the retina that gives central vision. It is located in the centre of the retina and contains the fovea.

Eye colour is created by the amount and type of pigment in the iris. Multiple genes inherited from each parent determine a person’s eye colour

  • -5
i am satisfy Vartika answer..
  • 2
this is my answer
  • 42
FUNCTION:
i)Cornea:-refracts incident light.
ii)Iris:-adjust the size of pupil.
iii)Pupil:-controls the light entering the eye.
iv)Retina:-receives optical image and converts it to electrical impulses.
v)Eye Lens:-is behind the pupil. It enables us to see distant objects clearly. 
  • -6
Please find this answer

  • -24
Labeled picture of the human eye.






















FUNCTION :--

Cornea of the eye is the first sight where convergence of light rays takes place.
Iris is that part of the eye which controls the amount of light entering the eye through the pupil.
Pupil is a type of small hole through which light enters the eye.
The eye lens is a convex lens just behind the pupilwhich converges the light rays towards the ratina.
The ratina is a type of screen in the eye having light sensitive cells where the formation of image takes place.
  • 2
Iris- control and regulate the amount of light entering the eye. adjusts the size of the pupil
Cornea- serves as the window of eye as light from objects to be seen enters the eye through the cornea.
retina- forms image or acts as a screen for the image of the object.
  • -9
Image of eye part

  • -5
Hope you all find this diagram helpful. Please a lots of sweet smile faces. Good luck

  • 7
Hope you all find this diagram helpful. Please a lots of sweet smile faces. Good luck

  • -4
I think rainbow is real image.as my point of view
  • -3


The cornea shares this protective task with the eyelids, the eye socket, tears, and the sclera, or white part of the eye. The cornea acts as the eye's outermost lens. It functions like a window that controls and focuses the entry of light into the eye.

 
  • 0
The cornea shares this protective task with the eyelids, the eye socket, tears, and the sclera, or white part of the eye. The cornea acts as the eye's outermost lens. It functions like a window that controls and focuses the entry of light into the eye.
  • 0
find your answer-
hope this will help you to understand..!!
  • 3
z
  • -1
Light is focused primarily by thecornea?? the clear front surface of the eye, which acts like a camera lens.The?iris?of the eye functions like the diaphragm of a camera, controlling the amount of light reaching the back of the eye by automatically adjusting the size of the pupil (aperture).The eye's crystalline lens is located directly behind the pupil and further focuses light. Through a process called accommodation, this lens helps the eye automatically focus on near and approaching objects, like an autofocus camera lens.Light focused by the cornea and crystalline lens (and limited by the iris and pupil) then reaches the?retina?? the light-sensitive inner lining of the back of the eye. The retina acts like an electronic image sensor of a digital camera, converting optical images into electronic signals. The optic nerve then transmits these signals to the visual cortex ? the part of the brain that controls our sense of sight.

  • 3
Yo
  • 1
Human eye diagram
  • 0
not correct answer
  • 1
1.Cornea-light enters the eye through a thin membrane called cornea. 2.Iris- a structure called iris behind the cornea.Iris is a dark muscular diaphagram that controls and regulate the size of the pupil.3.Pupil- controls the light entering the eye. 4.Ciliary muscles-controls the size of the pupil.5.Retina-is a delicate membrane having enormous number of light sensitive cells.6.Eye lens-forms a real and inverted image of the object on retina.7.Optic nerve-The light sensitive cells get activated upon illumination and generate electric signals.These signals are sent to the brain via optic nerve.
  • 1
Kindly refer to ncert class10book for better information
  • 2
Please find this answer

  • 5
Human eye diagram

  • 2
Search google. You will easily get the answers
  • 1

this
  • 1
Please find this answer

  • 0
Please find this answer

  • 0
Please find this answer

  • 0
Cornea- It is the transparent layer which protects our eye.
Iris- It is the colour pigment which regulates the size of pupil.
Pupil- It is a black hole through which light enters the eye
Retina- It is the light sensitive screen on which image is formed.
  • 0
The?eye?has many parts that must work together to produce clear?vision: The sclera, or white part of the?eye, protects the eyeball. ... It controls how much light enters the?eye?by changing the size of the pupil. The cornea, a clear window at the front of the?eye, covers the iris and the pupil.
  • 0
i cannot understand the handwriting sorry
 
  • 0
The functions of iris is to regulate the the amount of light entering the Eye by means of involuntary muscle control. The size of pupil is controlled by Iris. The function of cornea is that most of the refraction light entering the eye is done by cornea only the Focussing only the final focussing is done by eye lens the retina converts light energy into electrical energy electrical signal produced by the retina reaches the brain by optic nerve the brain interprets the electrical signal and produces sensation of vision if retina or optic nerve get the measured it leads to visual impairment.

  • 0
Please find this answer

  • 0
Human Eye labelled diagram

  • 0
Structure of an human eye

  • 0
Myopia
  • 0
Please find this answer

  • 0
1)Cornea=it is the refracting medium and it has transparent bulge on its outer surface.
2)Iris=is the dark coloured muscular diaphragm that controls the size of the pupil.
3)lens=it focuses the light rays to form real and inverted image of the object on the retina.
4)retina=is the part where image is formed behind the viterous humour.this retina sends the received image to the brain in the form of electric signals via the optic nerves
  • 0
# Functions:- Cornea: Cornea is transparent. It is responsible for the refraction of light rays towards the retina. Iris: Iris is a dark, circular muscular diaphragm behind the cornea. It gives the eye its color. It also controls the pupil size and thus controls the amount of light entering the eye. Pupil: Pupil is surrounded by the iris. It regulates and controls the amount of light entering the eye. Retina: The retina is the innermost layer of the eye. It contains an outer pigmented layer and an inner nervous layer which contains the photoreceptors (rods and cons). Cone cells are coned shaped and Rod cells are rod shaped. Optic nerve: The optic nerve connects the eye to the brain. The nerve fibers carry impulses from the retina to the visual cortex. Eye lens: The eye lens is made up of a fibrous, jelly-like material. It is transparent and has biconvex structure. It forms an inverted real image of the object on the retina and also separates the aqueous and the vitreous humours. Vitreous humour: Vitreous humour is clear, semi-solid solid supporting the eye ball.

  • 0
Please find this answer

  • 0
CORNEA ~ It helps in the protection of an eye. and it helps in focusing the light coming on retina .
IRIS ~ Thin circular structure that controls the size an diameter of pupil.
PUPIL ~ The opening of the iris that regulates and controls the amount of light entering the eye. 
RETINA ~ Image of any object forms on the retina .
  • 0
Please find this answer

  • 0
Anirudh please go through NCERT textbook and meritnation modules every thing is given in them
  • 0
Ncert hoti hai
  • 0
Thie whole thing is directly given in book itself
  • 0
draw a labelled diagram of human eye
  • 0
Please find this answer

  • 0
????????????
  • 0
Please find this answer

  • 0
Please find this answer

  • 0
Please find this answer

  • 0
Draw a face with fish eyes
  • 0
okay
  • 0
9,096
  • 0
what is colour of the leaves
  • 0
structure of eye
  • 0
Please find this answer

  • 0
You loser
  • 0
What are you looking for?