1. Warm-Up (12/10) Explain how proteins are secreted (released) by cells.
On the piece of white paper from the back, answer the following question.
Name
Date
Period
Explain how proteins are secreted (released) by cells.

2. Communication within a Neuron (nerve cell)
Neurons communicate using electricity.

3. Communication within a Neuron (nerve cell)
Dendrites receive signals from other neurons.

4. Communication within a Neuron (nerve cell)
Action potentials (electrical currents) flow through the axon.

5. Communication within a Neuron (nerve cell)
The myelin sheath insulates the action potentials.

6. Communication within a Neuron (nerve cell)
Schwann cells secrete the myelin to create the sheath.

7. Communication between Neurons
Neurons communicate with other neurons at the synapse.

8. Communication between Neurons
Neurotransmitters (ligands) are released at the synapse.
Synapse
Na+/K+ pump
neurotransmitters
Post-synaptic dendrite

9. Communication between Neurons
Ions pumped in and out stimulate electricity. K+
Na+/K+ pump
Na+

10. Communication between Neurons
stimulatory
The response can be stimulatory or inhibitory.
inhibitory

11. Communication between Neurons
All together, neurons make up a neural network.

12. Critical Thinking Question #1
Discuss this question with your partner and write or represent it. I will call on three people to share their partners’ answers.
Describe how the nervous system detects signals and transmits information.

13. Communication between Neurons
Mapping the connections in the brain?

14. Communication between Neurons
Different parts of the brain deal with different functions.
Vertebrate = anything with a spinal cord

15. Critical Thinking Question #2
Discuss this question with your partner and write or represent it. I will call on three people to share their partners’ answers.
Describe how the vertebrate brain integrates information (brings information together) to produce a response.

16. Closure
On the piece of white paper from the back, answer the following question:
Name
Date
Period
How does a neuron receiving neurotransmitters across a synapse produce an action potential?
Scale 1 – 10