Qaabka iyo shaqada qaansada falcelinta
Cashar 7 / 9
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Natiijada casharka
I can describe what a reflex response is and the path a nerve impulse takes through a reflex arc in the nervous system.
Muuji qoraalka
Reflex responses are fast and involuntary, and are essential to the survival of many organisms.
Reflex responses do not involve a processing centre (e.g. the brain) in the CNS.
In a reflex arc, the nerve impulse travels across a synapse from the sensory neurone to a relay neurone in the CNS.
The nerve impulse travels across a synapse from the relay neurone to a motor neurone in the PNS.
Sometimes the brain can modify (e.g. stop) a reflex response via a neurone to the motor neurone of the reflex arc.
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