Embedded Files
Learning Intention: You will learn about...
structure and function of all parts of a neuron
the difference between a motor, sensory and interneuron including what they do.
Success Criteria: You will be able to...
Label the 6 parts on a diagram of a motor neuron.
describe the function of all parts of a neuron.
explain the difference between a motor, sensory and interneuron.
Draw a diagram of the interaction between a motor, sensory and interneuron.
Key Terms:
Neurons
Motor neuron
Interneuron
Sensory neuron
Dendrites
Axon
Soma
Nucleus
Axon terminals
Myelin
Test yourself (extension):
Test yourself (extension):
What is a neuron?
Explain the meaning of the statement ‘Neurons are the primary functional units of the entire nervous system’.
In what way are the structure and functions of a dendrite different from those of axon terminals?
Explain what sensory neurons, motor neurons and interneurons are in terms of their specific functions.
Describe the interactive nature of these three types of neurons, with reference to an example not used in the text.
Suggest two possible consequences of damage to significant numbers of each of these three types of neurons.
Additional Resources:
Additional Resources:
Neural interaction Practical
Neural interaction Practical
As a class create a chain of neurons. Students should stand up and form a line. Each person in the line is a neuron. As shown in the figure below, your left hand becomes the dendrites of a neuron; your body is the cell body; your right arm is an axon and your right hand is the synaptic terminal. Your right hand should have a small item to represent neurotransmitters.
Each person should be about arms length away from the next person. When the leader says "GO," have the person at the beginning of the line start the signal transmission by placing his or her "neurotransmitter" into the hand of the adjacent person. Once this message is received, this second neuron places its neurotransmitter into the dendrite of the next neuron. The third neuron then places its neurotransmitter into the dendrites of the next neuron and the "signal" travels to the end of the line. The transmission is complete when the "signal" goes all the way to the end of the line.
Remember that each "neuron" will pass its own transmitter to the next neuron in line. Each neuron HAS ITS OWN neurotransmitter.
Identify which parts of the body formed which structures of the neuron?
Describe the process of neural communication and how this was demonstrated in the practical.
Explain this process with a real life example (eg picking up a pen).
Report abuse