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Questions and Answers
What is the function of neuroglia in the nervous system?
What is the function of neuroglia in the nervous system?
- Supporting the neurones (correct)
- Insulating the axon
- Regenerating nerve cells
- Transmitting nerve impulses
Which part of a nerve cell transmits nerve impulses away from the cell body?
Which part of a nerve cell transmits nerve impulses away from the cell body?
- Myelin sheath
- Axon (correct)
- Neurilemma
- Dendrites
Why are nerve cells (neurones) easily damaged by toxins or lack of oxygen?
Why are nerve cells (neurones) easily damaged by toxins or lack of oxygen?
- Lack of blood supply to the nerves
- Due to being located in the brain
- Because they are not insulated by myelin (correct)
- Absence of neuroglia support
Which part of a nerve cell is responsible for transmitting nerve impulses to the cell body?
Which part of a nerve cell is responsible for transmitting nerve impulses to the cell body?
In the nervous system, what does the neurilemma do?
In the nervous system, what does the neurilemma do?
What is the function of myelin sheath in a nerve cell?
What is the function of myelin sheath in a nerve cell?
Why are nerve cells (neurones) not replaced when they die?
Why are nerve cells (neurones) not replaced when they die?
Which part of a neuron is described as an irregular-shaped, nucleated cell?
Which part of a neuron is described as an irregular-shaped, nucleated cell?
What type of tissue supports neurons but does not transmit nerve impulses?
What type of tissue supports neurons but does not transmit nerve impulses?
Which part of a neuron helps to speed up nerve conduction by insulating the axon?
Which part of a neuron helps to speed up nerve conduction by insulating the axon?
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