Reception of Stimuli

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What two cells are sensitive to light?
Rods and COnce cells
1 of 24
What doe Cones allow?
colour vision in bright light
2 of 24
What do rod cells allow?
Black and white vision
3 of 24
In rods the molecule is a purplish pigment what is it called?
Rhodopsin
4 of 24
The neurone of the ganglion cell connects to what neurone?
Bipolar neurone
5 of 24
What vesicles are in the outer membrane?
vesicles, membranes containing photochemical pigments
6 of 24
Where are the rod and cone cells found?
Outer segment
7 of 24
What is behind the outer segment?
pigmented epithelium in choroid
8 of 24
What is behind the pigmented epithelium?
Sclera
9 of 24
In the dark what diffuses into the outer segment?
Sodium ions
10 of 24
Through what?
open cation channels
11 of 24
What then moves down the gradient?
SOdium ions
12 of 24
What gets pumped out on the inner segment?
Sodium ions actively pumped out
13 of 24
What is the membrane depolarised to?
-40 mV
14 of 24
What is released which binds to bipolar cells?
neurotransmitters
15 of 24
preventing it from?
depolarising
16 of 24
What is broken down?
Rhodopsin
17 of 24
What is closed?
Sodium ion channels
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What is actively pumped out?
Sodium ions
19 of 24
What is hyperpolarised?
membrane
20 of 24
What isnt released?
Neurotransmitter
21 of 24
What opens?
Cation channels in and bipolar cells open
22 of 24
What becomes depolarised?
membrane
23 of 24
Generating a what?
an action potential in the neurone of the optic nerve
24 of 24

Other cards in this set

Card 2

Front

What doe Cones allow?

Back

colour vision in bright light

Card 3

Front

What do rod cells allow?

Back

Preview of the front of card 3

Card 4

Front

In rods the molecule is a purplish pigment what is it called?

Back

Preview of the front of card 4

Card 5

Front

The neurone of the ganglion cell connects to what neurone?

Back

Preview of the front of card 5
View more cards

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