IGCSE BIOLOGY REVISION [Syllabus 14] Nervous System

Hey guys! Today we are looking at the nervous system. It may sound slightly overwhelming but not at all, once you grasp the concept it becomes extremely simple.

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IGCSE | Biology | Revision | Nervous System | Brain

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[karmaketchum]

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[seunggf]

Reflex arc : fast / conscious thinking / voluntary action
Simple reflex arc : automatic / VERY fast / unconscious thinking / involuntary action
is this correct ?

[MrFizzminecraft]

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[iffiahmed]

hi i have a question and that is what is the difference between nerve and nerve fiber

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[vykim]

I was wondering because the syllabus has changed so can you make some updated contents for the new syllabus? I'm actually not sure if there are any significant changes made or not, but I just want to be sure that I have covered all required contents when revising.

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[dontreadmyprofilepicture]

hi i have a question and what is the difference between axon and dendrite @Cambridge in 5 minutes

[ouropinionsmatter]

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[geo]

Aren't dendrites the branched terminals of the dendrites that receive signals at synapses? If so, then why are the branches at the end of the sensory neuron axons, which _send_ signals, labelled as dendrites between the timestamps 2:45-5:11.