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Animated Tutorial 34.1 The Resting Membrane Potential
1. How is it possible for charged ions to move from neuron to neuron if the plasma membrane
is impermeable to charged ions?
2. Describe the forces that act upon the potassium ions in and out of the plasma membrane.
3. What is the resting membrane potential charge?
4. At rest, why is the neuron negatively charged?
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Animated Tutorial 34.2 The Action Potential
1. What is an action potential?
2. What are the 5 phases?
3. What causes the sodium ions to move into the cell?
4. Describe what happens during the rising phase.
5. Describe what happens during the falling phase.
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Animated Tutorial 34.3 Synaptic Transmission
1. Where does communication occur between neurons and between neurons and muscles?
2. Describe a round of synaptic transmission.
3. Which ion triggers the release of neurotransmitters?
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Animated Tutorial 34.4 Information Processing in the Spinal Cord
1.How does a sensory axon enter the spinal cord?
2. What are interneurons?
3. Describe the path of a reflex starting with the sensory axon.
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Activity 34.2 The Human Cerebrum
1. What part of the brain controls muscle activity and maintaining balance.
2. What is the job of the frontal lobe?
3. What is the job of the parietal lobe?
Activity 34.3 Structures of the Human Brain
Practice the structures of the human brain.
Interactive Tutorial 34.1 Neurons: Electrical and Chemical Conduction
Axon
1. What happens if the sodium ion channels are blocked?
2. What happens if the potassium ion channels are blocked?
3. What happens if the sodium ion inactivation gates are blocked?
Synapse
1. What happens if the sodium ion channel is blocked?
2. What happens if the calcium ion channel is blocked?
3. What happens if the neurotransmitters cannot bind to the receptors?
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