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The pupil is the hole in the centre of they eye. It allows light to pass through to the back of the eye. The light is sensed by special cells. Information is then sent to the brain where a visual image is formed.

It may be relevant to note that the light is flipped upside down when it travels to the back of the eye. The brain is able to sort the image so it is the right way up. The reason the brain can do this is becuase it has practice. Becuase of this babies probably see the whole world upside down for their first few weeks after birth. Also, if you stood on your head for a few weeks, you would start to see everything the right way up again... assuming the blood flow to your head didnt kill you first

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12y ago

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Related Questions

What is the homophone for pupil?

Pupil. It means a student or a part of the eye."Homophones are words of the same language that are pronounced alike even if they differ in spelling, meaning, or origin"


What five letter word meaning somebody going to school?

pupil


What is the meaning of alumnus?

A pupil; especially, a graduate of a college or other seminary of learning.


What is a homograph for pupil?

Oh, dude, a homograph for "pupil" is like when you have the word "pupil" meaning a student's eye part, and then you also have "pupil" meaning a student. It's like a two-for-one deal with words. So, yeah, homographs are basically twins in the word world.


What is the possessive noun for pupil?

Pupil's The pupil's mother came to school.


Meaning of the word 'pupil'?

A pupil can refer to a student in a school or educational setting. It can also mean the dark circular opening in the center of the iris of the eye, through which light enters the eye.


What is the medical term for contraction of the pupil?

The phrase that means that someone's pupils contract when a bright light is shone into their eyes is "pupils reactive" ... they react to the light. If they don't react to the light, they'd be described as "pupils fixed and dilated."


What is the black hole in the center of the iris?

The black circle in the middle of the iris in your eye is called a pupil. It dilates to adjust with sunlight.


Do you need an apostrophe in pupils?

As always the use of an apostrophe is determined by the meaning you want to give the word.Pupils: more than one pupil e.g. There are 30 pupils in this class. (There is more than one)Pupil's: owned by a pupil e.g. Have you seen this pupil's book? (The book that belongs to the pupil)Pupils': owned by more than one pupil e.g. I want to talk to you about the pupils' behaviour. (the behaviour 'belonging to' more than one pupil)NB Pupil can mean two things. A pupil can be a student at a school, which is how the word is used in the above examples.'Pupil' is also the name of the transparent portion of the eye (the black dot in the middle). They are treated the same grammatically, but the example sentences would be different.


What is the antonym of taught?

"Learned" could be an antonym of "taught."


What is an homograph for pupil?

An example of a homograph for "pupil" is "pupil" (a student) and "pupil" (the dark circular opening in the center of the eye).


What is the apostrophe of pupil Questions?

The word pupil is a common singular noun. It requires no apostrophe.The pupil looked bored.If the word pupil has a possession or belonging, it needs an apostrophe.The pupil's questions challenged me.The principal was amazed at the pupil's insightful questions.