UNIT 15: Neurons and Movement
Essential Ideas:
- Neurons transmit the message, synapses modulate the message.
- The roles of the musculoskeletal system are movement, support and protection.
Content |
Core Resources |
Support Material |
Nerve impulses |
Introductory activity: What would it be like if you could feel no pain? Watch this video to learn about a very rare congenital insensitivity to pain (CIPA):
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Neuron structure Workbook activity 192 |
Introduction to the structure of neurons 1. Neurons and nerve impulses Complete the following worksheet: 2. Neuron diagram |
Weblink |
Resting potential and action potential Workbook activity 193 |
3. Nerves Watch the animation of resting and action potential.Use the Hexagon cards - sort te explanations into those which describe establishing resting potential, and those which explain the action potential and the propagation of an impulse. Then arrange the hexagons into a logical order for the explanation. 4. Hexagon nerve impulse |
WeblinkVideo |
Saltatory conduction |
Saltatory conduction, (the nature of an impulse jumping from node of Ranvier to node of Ranvier) increases the speed of the impulse by up to 30 times and it reduces the number of ions which move through the membrane making the process more efficient, saving energy. 5. Saltatory conduction |
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Synapses Workbook activity 194 - 195 |
Watch this animation: and then answer the short questions under the animation. Complete the following three questions: 6. Synapse question sheet Complete the synapse worksheet: 7. Synapse worksheet Complete the questions on the following worksheet to review this unit using the presentation: 8. Nerve worksheet 9. Neurons and synapses (6.5) 9a. 6.5 Checklist |
Weblink |
Muscles and joints |
The best way to find the different joints in the human skeleton is by investigating a model skeleton. In the absence of a real model there are some great interactive human bodies online. Zygote body and Biodigital human are both free to use, but they both require a login. Use the human body models to answer these questions:
10. Human joints and movement |
Video
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Movement, muscles and the sliding filament theory |
Again you can use Biodigital human to get a visual of the mechanism of muscle contraction. Use the following ppt and worksheets to understand the mechanism of muscle contraction: 11. Muscle contraction and the sliding filament theory 12. Muscle structure worksheet 1 13. Muscle contraction worksheet 2 14. Movement AHL complete presentation Now try this QUIZLET to practice the terms |
Weblinks
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