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impulses, synapses
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riyazk
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Why do impulses have a direction and what has the synapse got to do with this explanation?
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username2667475
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The impulse travels in one direction along the synapses (I'm assuming you are talking about cholinergic synapse), because of the way they are structured, the impulse travels from the pre-synaptic membrane as these contain synaptic vesicles which secrete acetylcholine that diffuses across to the post-synaptic membrane. The post-synaptic membrane contains receptors for the acetylcholine, which when it binds opens sodium channels allowing the sodium to diffuse in and depolarise axon, if the potential reaches the threshold value then an action potential is generated and passed along until it reaches the effector organ (usually a muscle).
(hope this helps)
(hope this helps)
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username2396569
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(Original post by riyazk)
Why do impulses have a direction and what has the synapse got to do with this explanation?
Why do impulses have a direction and what has the synapse got to do with this explanation?
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Kallisto
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(Original post by riyazk)
Why do impulses have a direction and what has the synapse got to do with this explanation?
Why do impulses have a direction and what has the synapse got to do with this explanation?
Without a direction, impulses cannot be reached the organs, the body parts (arms, hands, legs, feet...) to signalize them to work or to move.
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