The Brain and Eye

?
which part of the brain controls intelligence, personality, etc.
cerebral cortex
1 of 20
what does the cerebellum do?
co-ordinates body movement (posture, balance, etc.)
2 of 20
what is the name of the gland located in the brain?
pituitary gland
3 of 20
what does the medulla oblongata do?
it is the control center for several vital functions (pacing heart rate)
4 of 20
what is the cornea?
the transparent part of the sclera at the front of the eye
5 of 20
what does the cornea do?
refracts light as it enters the eye
6 of 20
what is the iris and what does it do?
-the coloured part of the eye
-controls how much light enters the eye
7 of 20
what does the retina do?
contains light sensitive receptor cells
8 of 20
what are the names of the cells in the retina that detect light and colour?
light: rod
colour: cone
9 of 20
what is the optic nerve and what does it do?
-sensory nerve
-carries impulses between the eye and brain
10 of 20
what is the pupil?
hole in the eye that allows light to enter
11 of 20
what is accommodation?
how the eye changes to refract light
12 of 20
what happens to the eye to see a near object?
-ciliary muscles contract
-so diameter gets smaller
-suspensory ligaments loosen/ slacken
-lens thickens
light is refracted strongly
13 of 20
what happens to the eye to see a distant object?
-ciliary muscles relax
-so diameter increases
-suspensory ligaments tighten
-lens thins
-light is refracted slightly
14 of 20
what is the name for short/ nearsightedness?
myopia
15 of 20
what is wrong with the eye to cause nearsightedness?
-cornea is too curved
-eye ball is too long
16 of 20
what corrects nearsightedness?
myopia is corrected using a concave lens which diverges (pushes apart) the light rays
17 of 20
what is the name for long/ farsightedness?
hyperopia
18 of 20
what is wrong with the eye to cause farsightedness?
-cornea is not curved enough
-eye ball is too short
19 of 20
what corrects farsightedness?
hyperopia is corrected by a convex lens which converges (brings together) the light rays
20 of 20

Other cards in this set

Card 2

Front

what does the cerebellum do?

Back

co-ordinates body movement (posture, balance, etc.)

Card 3

Front

what is the name of the gland located in the brain?

Back

Preview of the front of card 3

Card 4

Front

what does the medulla oblongata do?

Back

Preview of the front of card 4

Card 5

Front

what is the cornea?

Back

Preview of the front of card 5
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