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Glossary

Glossary. Date : Jan 29 , 2014 Page : Table of Contents p 1 W.O.D: Last 5 pages Warm-ups : Front Cover W.O.D . Threshold – the minimum level of an impulse needed to activate a neuron. Question: How are nerve impulses like dominoes?. Today’s Plan. Warm-up

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Glossary

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  1. Glossary Date: Jan 29 , 2014Page: Table of Contents p 1 W.O.D: Last 5 pagesWarm-ups: Front CoverW.O.D. Threshold – the minimum level of an impulse needed to activate a neuron. Question: How are nerve impulses like dominoes?

  2. Today’s Plan • Warm-up • Introduce our speaker • Pushing the limits video • Grades – Get signed! • Reflect

  3. Anat& Phys Table of Contents (p. 1) • Your Brain & Your Nervous System p. 2 • Brain Notes/Find someone who… p. 3 • Brain Hemisphere Dominance p. 4 • The Secrets of the Brain Video p. 5 • Neuron Drawing p. 6 • Textbook Reading (p. 896-900) p. 7 • Senses/Stimuli game p. 8 • Reflex notes p. 9 • Reaction Vs. Reflex lab/Pre-Lab p. 10 • Human body: Pushing the Limits p. 11 • Muscle Reading/?’s Text 926-931 p. 12 • Muscles under the Microscope (+ Muscle Reading) p. 13 • Muscle Notes/Muscle Fatigue lab p. 14 • Pushing the Limits Video /Action Potential p.15

  4. Action potential of muscles

  5. Ions (charge elements) build up until • Na+ (sodium) gathers outside the membrane • K+ (Potassium) gathers inside the membrane • A signal from another nerve opens the channels, and the Na+ rushes in. K+ rushes out. • This repeats jumping down the nerves. • At the end of the nerve, Acetylcholine has been building up. • When the impulse reaches the neuromuscular junction, Acetylcholine channels are open, allowing it to rush out and trigger a muscle contraction.

  6. Reflection: Would you consider working for Youth Outdoors?

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