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Alejandra Valdez
Week 14
| Question | Answer |
|---|---|
| What is a neuron? | A neuron is a specialized nerve cell that receives, processes, and transmits electrical and chemical signals in the body. |
| What gives neurons their electrical nature? | The movement of ions (such as sodium and potassium) across the neuron’s membrane creates electrical signals. |
| What is a resting membrane potential? | It is the electrical charge of a neuron when it is not sending a signal, usually negative inside the cell compared to outside. |
| What is an action potential? | An action potential is a rapid change in membrane potential that allows an electrical signal to travel down a neuron. |
| What triggers an action potential? | An action potential is triggered when a neuron reaches threshold due to sufficient stimulation. |
| What happens during depolarization? | Sodium ions enter the neuron, causing the inside of the cell to become more positive. |
| What is synaptic transmission? | synaptic transmission is the process of sending a signal from one neuron to another across a synapse. |
| What are neurotransmitters? | Neurotransmitters are chemical messengers released by neurons to transmit signals across synapses. |
| How do neurotransmitters affect the next neuron? | They bind to receptors and either excite or inhibit the receiving neuron. |
| What is a neural network? | A neural network is a group of interconnected neurons working together to process information. |
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