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week 7 assignment
| Question | Answer |
|---|---|
| What ion moves out during repolarization? | Potassium |
| What ion rushes into the cell during depolarization? | Sodium |
| What structure carries action potentials deep into muscle fibers? | T tubules |
| Which type of synapse uses neurotransmitters? | Chemical |
| What’s the basic contractile unit of muscle fibers? | Sarcomere |
| What’s the “all-or-none” response referring to? | Action potential |
| Which neurotransmitter is most involved in “reward” and motivation? | Dopamine |
| What is the term for muscle wasting? | Atrophy |
| Which neurotransmitter helps regulate mood and sleep? | Serotonin |
| What type of receptor is directly part of an ion channel? | Ionotropic |