Bricks 5.3 Vision

5.3
Vision
1 / 23
next
Slide 1: Slide
BiologieMiddelbare schoolvwoLeerjaar 2

This lesson contains 23 slides, with interactive quizzes, text slides and 3 videos.

Items in this lesson

5.3
Vision

Slide 1 - Slide

eyelid
tearduct
tear gland
eyebrow
eyelash

Slide 2 - Drag question

Slide 3 - Slide

Eyebrow
Eyelashes
Tear fluid
Eyelid
sweat and other moisture runs past your eyes and not in them
protects against dirt and excessively bright light
protects against dehydration and cleans the eye
can close as a protective layer over your eye 

Slide 4 - Drag question

Slide 5 - Slide

Slide 6 - Slide

Slide 7 - Video

Slide 8 - Link

iris
retina
sclera
cornea
pupil
optic nerve
lens

Slide 9 - Drag question

retina
Cones are for: Color (red / blue / green)
Rods are for: Light (black / white)

Slide 10 - Slide

retina
cones work well in bright light
rods function in dim light
the fovea is the most sensitive part (lots of cones)

Slide 11 - Slide

retina

Slide 12 - Slide

0

Slide 13 - Video

blind spot/optic nerve

Slide 14 - Slide

test blind spot
page 125 of your workbook, excercize 16

Slide 15 - Slide

Slide 16 - Slide

Dim light → circular muscles relaxed, radial muscles contracted → pupil large


Bright light → circular muscles contracted, radial muscles relaxed → pupil small

Slide 17 - Slide

Slide 18 - Video

which cat is in a darker room?
A
B

Slide 19 - Quiz

Slide 20 - Link

Eye lens focusing

Slide 21 - Slide

(-) minus lenses
(+) plus lenses
short
long

Slide 22 - Slide

glasses
short - sightedness: --> you can’t see sharp in the distance, 
- your eye is too long, or your lenze can’t flatten enough
- you need 'minus' (concave ) glasses,

long - sightedness: --> you can’t see sharp up close, 
- your eye is too short, or your lenze can’t contract enough
- you need 'plus' (convex) glasses, 

Slide 23 - Slide