Neuron Structure Worksheet
A Grade 12 science worksheet focusing on the structure and function of neurons, including identification of parts and their roles in nerve impulse transmission.
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Neuron Structure Worksheet
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Read each question carefully and answer to the best of your ability. Refer to the provided diagram where necessary.
1. Label the following parts of the neuron shown in the diagram below:
A. (Dendrite)
B. (Cell Body/Soma)
C. (Axon)
D. (Myelin Sheath)
E. (Node of Ranvier)
F. (Axon Terminal)
2. Which part of the neuron typically receives signals from other neurons?
Axon
Dendrite
Myelin Sheath
Cell Body
3. The primary function of the myelin sheath is to:
Produce neurotransmitters
Protect the dendrites
Speed up nerve impulse transmission
Anchor the neuron to other cells
4. The gaps in the myelin sheath along the axon are called the .
5. Neurotransmitters are released from the to transmit signals across a synapse.
6. Briefly explain the functional difference between an axon and a dendrite.
7. Describe the role of the cell body (soma) in a neuron.
8. All neurons are covered by a myelin sheath.
True
False
9. The direction of nerve impulse transmission is typically from axon to dendrite.
True
False