Unit 6 - Organisms respond to changes in their internal and external environments
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Course
Unit 6 - Organisms respond to changes in their internal and external environments
Institution
AQA
These notes helped me get into medical school, I completed my a levels at Guildford high school which consistently ranks among the top schools in the UK and is known for their academic rigour. I made these notes as a summary of the power points that we were taught off of.
Unit 6 - Organisms respond to changes in their internal and external environments
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40
nodes Of
↓&
resting >Natout/2kt in -
E
depolarisation only
J
-
raviner
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e
-
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-
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-
Leakey Axon
at nodes
allowing
N
of raviner
Schwann
the impulse to 'jump'
depolarisation
- 40
Threshold
-
Nat open cells
- Isaltatory
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-
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+ conduction(
-
68
-
k" closed +
+
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Propagation
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Nat closed
Nat
& "It
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wa
& -
↳Open refractory period
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> ensures is
only
ane
i
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↳
& hyperpolarisation-k"closes
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·
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e
Spatial summation Temporal summation
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presynaptic
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to release neurotransmitter
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6 postsynaptic
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Agonists <
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Antagonists ,
drugs that inhibit the neuron
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