Microscopic construction of the eye and how to get it from children

Microscopic construction of the eye
Presented by Ruben, Nick and Mathias
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Slide 1: Slide
BIOCLILSecundair onderwijs

This lesson contains 23 slides, with interactive quizzes and text slides.

Items in this lesson

Microscopic construction of the eye
Presented by Ruben, Nick and Mathias

Slide 1 - Slide

What do you know about the microscopic construction of the eye?

Slide 2 - Mind map

How often do you use your eyes?
Never
only during day time
only when your eyes are open
Always

Slide 3 - Poll

Cornea
-exterior of the eye
-stroma cells: endothelial cells   (interior) and plaveiselepitheelcellen   (exterior)
-protection from infections
-thickest part of the eye

Slide 4 - Slide

With what do you think our eyes see?

Slide 5 - Open question

Light
-Retina
-Photopigments
-Absorption of light

Slide 6 - Slide

Retina
-netvlies (the screen)
-126 million cells
        *light sensitive -> photoreceptors
-cones = pigmented to differentiate colors
-rods = differ between light and dark


Slide 7 - Slide

Quick question how many photoreceptors do you have in your eyes?
A
252 million
B
too much
C
50 thousand
D
126 million

Slide 8 - Quiz

photoreceptor
-absorption
-light

Slide 9 - Slide

cones
rods
translation Retina
pigmented to differentiate colors
differs between light and dark
netvlies

Slide 10 - Drag question

Macula
-what?
  *yellow fleck
-location?
  *back of eye
  *inside the retina
-purpose?
  *visualizes the central of our vision
  *perception of fine details
  *macular pigments

Slide 11 - Slide

What is the main purpose of the Macula?
A
light absorption
B
perception of fine details
C
pigments
D
yellow fleck

Slide 12 - Quiz

Uvea(vascular nerve)

between retina and cornea
three concentric layers
looks like a grape
middle layer of the eye consisting of the iris, the choroid and the ciliary body
supplies the eye with nutrients
improves vision quality by decreasing the amount of light that falls into the eye
is filled with lymphocytes controls inflammation to avoid major damage dealt by infections

Slide 13 - Slide

Crystalline lens (ooglens)

-location?
  -between the retina and the iris
has 4 parts->
-lenskapsel, subcapsular space, cortex, nucleus
-purpose?
  -focuses light onto the retina
fun fact: what animals are the primary users of crystalline lenses?: land animals

Slide 14 - Slide

Why did our ancestors need to focus their vision to survive?

A
to hunt
B
food
C
ograns
D
to gather

Slide 15 - Quiz

what animals are the primary users of crystalline lenses?
A
ocean animals
B
ocean anymals
C
oceen animals
D
land animals

Slide 16 - Quiz

Iris
-purpose?
  -controls light coming in
  -changes size depending on light.
-example?
  -sizes down = less light.
  -sizes up = more light.
-It consists of 2 layer:
  -pigmented fibrovascular
  -stroma

Fun fact: The iris is also responsible for your eye color!




Slide 17 - Slide

Now the see if you actually listened
the quiz!

Slide 18 - Slide

When do you use your eyes?
A
always
B
only when there's light
C
only when open
D
almost never

Slide 19 - Quiz

Where is the retina located?
A
front of the eye
B
the back
C
in between the retina and the iris
D
the back of the eye

Slide 20 - Quiz

What is the thickest part of the eye?
A
the exterior
B
the iris
C
the cornea
D
the retina

Slide 21 - Quiz

128 million
2
4
layers of the iris
parts of the crystalline lens
amount of cells in the retina

Slide 22 - Drag question

Your eyes' eye color depends on…

A
Cornea
B
Retina
C
Iris
D
Macula

Slide 23 - Quiz