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Questions and Answers
What is the function of dendrites in neurons?
What is the function of dendrites in neurons?
- Transmit signals to other cells
- Receive signals from other neurons (correct)
- Produce neurotransmitters
- Contain organelles
What is the role of an axon in a neuron?
What is the role of an axon in a neuron?
- Receive signals from other neurons
- Transmit signals to other cells (correct)
- Produce neurotransmitters
- Contain organelles
What is a synapse?
What is a synapse?
- A junction between an axon and another cell (correct)
- A part of the cell body
- An electrical signal
- A type of neurotransmitter
What do neurons use to communicate long-distance signals?
What do neurons use to communicate long-distance signals?
At most synapses, what passes information from the transmitting neuron to the receiving cell?
At most synapses, what passes information from the transmitting neuron to the receiving cell?
How does the cone snail disable neurons in its prey?
How does the cone snail disable neurons in its prey?
What are the three stages of information processing in nervous systems?
What are the three stages of information processing in nervous systems?
Which type of neurons transmit information about external stimuli such as light, touch, or smell?
Which type of neurons transmit information about external stimuli such as light, touch, or smell?
What is the main function of interneurons in the nervous system?
What is the main function of interneurons in the nervous system?
Which cells are required to support neurons in both the central nervous system and the peripheral nervous system?
Which cells are required to support neurons in both the central nervous system and the peripheral nervous system?
What is the resting potential of a neuron?
What is the resting potential of a neuron?
What maintains the concentration gradient of K+ and Na+ ions across the membrane of a neuron?
What maintains the concentration gradient of K+ and Na+ ions across the membrane of a neuron?
What type of ion channels open or close in response to a change in voltage across the plasma membrane of a neuron?
What type of ion channels open or close in response to a change in voltage across the plasma membrane of a neuron?
During depolarization, what happens to the inside of the neuron's membrane?
During depolarization, what happens to the inside of the neuron's membrane?
What is the role of hyperpolarization in a neuron?
What is the role of hyperpolarization in a neuron?
Which cells form bundles we call nerves when grouped together?
Which cells form bundles we call nerves when grouped together?
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