Nerve Impulse Worksheet
Explore the fascinating process of nerve impulse transmission, including action potentials, synaptic communication, and the role of neurotransmitters.
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Nerve Impulse Worksheet
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Date:
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Read each question carefully and provide your best answer. Refer to your notes and textbook if needed.
1. A nerve impulse is also known as an .
2. The resting potential of a neuron is primarily maintained by the pump.
3. Neurotransmitters are released into the to transmit signals between neurons.
4. The insulating layer around an axon, called the , speeds up impulse transmission.
1. Which part of the neuron typically receives signals from other neurons?
Axon
Dendrite
Cell body
Myelin sheath
2. What happens to the membrane potential during depolarization?
It becomes more negative.
It becomes more positive.
It remains unchanged.
It reaches the resting potential.
1. Label the parts of the neuron in the diagram below:
A:
B:
C:
D:
1. Nerve impulses always travel in one direction, from the dendrite to the axon terminal.
True
False
2. The 'all-or-none' principle states that a nerve impulse either fires completely or not at all.
True
False
1. Describe the key events that occur during the transmission of a nerve impulse across a synapse. Include the roles of the presynaptic neuron, postsynaptic neuron, synaptic cleft, and neurotransmitters.