The Central and Peripheral Nervous Systems (VCE SSCE Psychology): Quizzes
📚Quizzes
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10 questions from this quiz
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Practise the questions
10 questions from this quiz
What two structures make up the central nervous system?
What two structures make up the central nervous system?
Brain and spinal cord
Approximately how many neurons does the human brain contain?
Approximately how many neurons does the human brain contain?
86 billion
How long is the human spinal cord?
How long is the human spinal cord?
45 centimetres
In a spinal reflex, which cells initiate the motor response without requiring brain input?
In a spinal reflex, which cells initiate the motor response without requiring brain input?
Interneurons
What is the main function of the sympathetic nervous system?
What is the main function of the sympathetic nervous system?
Increase arousal for quick action
Which nervous system returns the body to calm after a stressful situation?
Which nervous system returns the body to calm after a stressful situation?
Parasympathetic
What type of muscles does the somatic nervous system control?
What type of muscles does the somatic nervous system control?
Skeletal muscles
How many pairs of spinal nerves connect the spinal cord to the peripheral nervous system?
How many pairs of spinal nerves connect the spinal cord to the peripheral nervous system?
31 pairs
Which characteristic distinguishes conscious responses from unconscious responses?
Which characteristic distinguishes conscious responses from unconscious responses?
They require awareness
How many pairs of cranial nerves connect the brain directly to organs and muscles?
How many pairs of cranial nerves connect the brain directly to organs and muscles?
12 pairs