5. Homeostasis and response

The Nervous System



This video describes the role of receptors, the coordination centre and effectors in homeostasis including how a reflex arc works and how a synapse works. The exam question related to this video includes sample assessment questions on reaction time, which relate to the reaction time Required Practical.

Key Words

synapse, homeostasis, neurones, receptor, stimuli, effector, sensory, motor, relay neurones, spinal cord, response, reflex, neurotransmitter

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