A2 Biology

Little general knowledge of some of the key points

?
what is the name of the insulator around nerve cells?
myelin sheath
1 of 7
What is the name the gaps in the myelin sheath?
nodes of ranvier
2 of 7
why?
action potential jumps from node to node
3 of 7
what direction does the impulse travel along a motor neurone
dendrites to dendron to cell body to axon to muscle cell
4 of 7
what causes the vessicles in the pre-synaptic knob to merge with the pre-synaptic membrane
influx of Ca2+ ions
5 of 7
What is inside the vessicles?
neurotransmitters
6 of 7
What happens to the contents of the vessicles after it left the pre-synaptic knob and the action potential has continued along the post-synaptic knob
broken down by enzymes
7 of 7

Other cards in this set

Card 2

Front

What is the name the gaps in the myelin sheath?

Back

nodes of ranvier

Card 3

Front

why?

Back

Preview of the front of card 3

Card 4

Front

what direction does the impulse travel along a motor neurone

Back

Preview of the front of card 4

Card 5

Front

what causes the vessicles in the pre-synaptic knob to merge with the pre-synaptic membrane

Back

Preview of the front of card 5
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