Anatomy AB

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There are five sense in the human
body. Today we are going to explore
sight, smell, and sound.

SIGHT

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The function of sight is to
help us see our surroundings
and to remember things that
we have seen.

The main organ for sight,
as you can "see" from all
the pictures, are the eyes.

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The human eye is like a
camera lens. It takes in light
and gathers info to send to the brain
as a picture.

Let's explore the parts of the eye.

-The Cornea is on the front of the eye, which iscovered by a layer of tears.-The iris gives the eye it’s color and allowsdifferent amounts of light to be absorbed.-The lens focuses the sight and can changedepending on the amount of light.-The eyelashes and eyelids protect eye.

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-Our eyes help us to see the world.-They are like a camera-they help our brain remember what we see.-With sight, we can see, drive a car, see friends and family, watchtelevision, do homework, and watch things happen.

How does sight help us in real life?

Now let's learn about some eye diseases:
-Cataracts-the eye lenses become cloudy and blurry.-Strabismus (Crossed Eyes)-eyes are not aligned andgo in different directions-Glaucoma-fluid builds up which causes pressure anddamages the optic nerves-Color Blindness-people who cannot see color orcertain shades of colors-Conjunctivitis (Pink Eye)-swelling in theconjunctiva

Smell

Next, is the sense of a smell.
The two functions of smell is to
help someone be aware of their
surroundings by sending signals
through the nose to the brain.
Secondly, the sense of smell helps
us to recognize past scents that
we have smelled.