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Questions and Answers
Where are cell bodies located?
Where are cell bodies located?
- Only in the CNS
- In the ganglia outside the PNS
- In the CNS or in ganglia (correct)
- Exclusively in the PNS
What do sensory neurons do?
What do sensory neurons do?
- Act as receptors themselves or are activated by stimuli received from receptors (correct)
- Cause muscles or glands to contract
- Send signals to effectors
- Interconnect neurons within the CNS
Where do interneurons lie?
Where do interneurons lie?
- Exclusively in the PNS
- In both CNS and PNS
- Within the central nervous system (CNS) (correct)
- In ganglia outside the CNS
What is the function of motor neurons?
What is the function of motor neurons?
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How do neurons communicate?
How do neurons communicate?
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What is the small gap between the axon of a presynaptic neuron and a postsynaptic cell called?
What is the small gap between the axon of a presynaptic neuron and a postsynaptic cell called?
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What occurs when a threshold stimulus is applied to a resting neuron?
What occurs when a threshold stimulus is applied to a resting neuron?
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What is the trend towards bilateral symmetry and cephalization observed in animals?
What is the trend towards bilateral symmetry and cephalization observed in animals?
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In which animal does the nervous system exhibit a ladder-like structure?
In which animal does the nervous system exhibit a ladder-like structure?
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What causes the plasma membrane of a resting neuron to be negatively charged inside than outside the cell?
What causes the plasma membrane of a resting neuron to be negatively charged inside than outside the cell?
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