Lecture 12b Nervous Tissue
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Front Range Community College
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Summary
This lecture covers nervous tissue, focusing on Schwann cells, action potential, and nerve impulses. It includes links to relevant YouTube videos and resources related to membrane potential and summation.
Full Transcript
Chapter 12b Nervous Tissue Schwann cells and the action potentia l: https://www.youtube.com/watch?v= DJe3_3XsBOg Nerve impulse: https://youtu.be/uDnH OUPRTYM Membrane potential: ht...
Chapter 12b Nervous Tissue Schwann cells and the action potentia l: https://www.youtube.com/watch?v= DJe3_3XsBOg Nerve impulse: https://youtu.be/uDnH OUPRTYM Membrane potential: https://www.britannica.com/science /nervous-system/The-neuronal-me mbrane Na Na Na + + + The Great Escape of K+ Na + K+ The Great Escape of Na+ - Protein - Protein power - power - K+ K+ K+ Remember that ions don’t like to be crowded, so they go from high concentration to low concentration. Where would Na+ go? What about K+? K + Na + Let’s see if you can remember the regions… and all the channels and pumps that we will find on the neuron! https://www.youtube.co m/watch?v=ZnC8v9Dl_ O4 Temporal summation: Pain levels Spatial summation: recruitment of additional motor units in muscles to have more force.
