Response to Stimuli (AQA A-Level Biology): Flashcards
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Practise the cards
10 cards from this deck
What does the nervous system control?
What does the nervous system control?
Responses to changes in environment
Two components of CNS
Two components of CNS
Brain and spinal cord
Brain's role in CNS
Brain's role in CNS
Primary processing centre for information
Spinal cord's role in CNS
Spinal cord's role in CNS
Main pathway connecting brain to rest of body
What is the PNS?
What is the PNS?
All nervous tissue outside brain and spinal cord
Where do sensory neurones carry impulses?
Where do sensory neurones carry impulses?
From receptors toward CNS
Where do motor neurones carry impulses?
Where do motor neurones carry impulses?
From CNS to effectors (muscles and glands)
Voluntary nervous system function
Voluntary nervous system function
Carries impulses to muscles under conscious control
Autonomic nervous system function
Autonomic nervous system function
Carries impulses to glands, smooth and cardiac muscle (involuntary)
What are reflex arcs?
What are reflex arcs?
Rapid, automatic responses to stimuli