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Questions and Answers
What does Dendrites do?
What does Dendrites do?
- Sends impulses to other nerve cells
- Receives impulses from other nerve cells (correct)
- Releases neurotransmitters
- Joins the soma and axon
What is the definition of an axon hillock?
What is the definition of an axon hillock?
The part of the cell that joins the soma and axon to collect impulses.
What function does the Myelin Sheath serve?
What function does the Myelin Sheath serve?
Surrounds the axon and insulates it from surrounding cells.
What do Terminal Buttons release?
What do Terminal Buttons release?
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What are Neurotransmitters?
What are Neurotransmitters?
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Neuron transportation typically carries signals from __________ to __________.
Neuron transportation typically carries signals from __________ to __________.
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What are Nodes of Ranvier?
What are Nodes of Ranvier?
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What is the function of an Axon?
What is the function of an Axon?
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What does the Soma contain?
What does the Soma contain?
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What is the role of the axon?
What is the role of the axon?
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What does a Terminal do?
What does a Terminal do?
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Study Notes
Neuron Structure and Function
- Dendrites: Receive impulses from other neurons, crucial for signal reception.
- Axon Hillock: Integrates incoming signals from the soma, essential for determining if an impulse should be sent.
- Myelin Sheath: Insulates axons, enhancing the speed and efficiency of signal transmission by preventing loss of electrical charge.
- Terminal Buttons: Release neurotransmitters, key in nerve signal transmission to other neurons or muscles.
- Neurotransmitters: Chemical messengers that facilitate communication between neurons by transmitting impulses across synapses.
- Neuron Transportation: Signals are transported unidirectionally from dendrites through the soma, along the axon, and to the terminal buttons.
- Nodes of Ranvier: Gaps in the myelin sheath that facilitate the rapid movement of ions for impulse generation, crucial for efficient conduction.
- Axon: A long fiber that transmits impulses away from the soma toward other cells, ending in terminal buttons.
- Soma: Contains the nucleus and genetic material, essential for maintaining cellular functions and processes.
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