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Questions and Answers
What leads to the release of calcium from the sarcoplasmic reticulum?
What leads to the release of calcium from the sarcoplasmic reticulum?
- Hyperpolarization caused by potassium efflux
- Depolarizing current caused by sodium influx (correct)
- Action potential firing
- Opening of chloride channels
What type of channels open, allowing sodium to flow in and causing a depolarizing current?
What type of channels open, allowing sodium to flow in and causing a depolarizing current?
- Voltage-gated potassium channels
- Voltage-gated sodium channels (correct)
- Ligand-gated sodium channels
- Ligand-gated potassium channels
What type of neurons fire action potentials that move down the axon?
What type of neurons fire action potentials that move down the axon?
- Sensory neurons
- Interneurons
- Somatic motor neurons (correct)
- Autonomic neurons
What is involved in muscle cell membrane potential and the release of calcium from the sarcoplasmic reticulum?
What is involved in muscle cell membrane potential and the release of calcium from the sarcoplasmic reticulum?
What is responsible for bringing in calcium during muscle contraction?
What is responsible for bringing in calcium during muscle contraction?
What type of channels open, allowing sodium to flow in and causing a depolarizing current?
What type of channels open, allowing sodium to flow in and causing a depolarizing current?
What is the role of acetylcholine in muscle cell membrane potential and the release of calcium from the sarcoplasmic reticulum?
What is the role of acetylcholine in muscle cell membrane potential and the release of calcium from the sarcoplasmic reticulum?
What leads to the release of calcium from the sarcoplasmic reticulum?
What leads to the release of calcium from the sarcoplasmic reticulum?
What type of neurons fire action potentials that move down the axon?
What type of neurons fire action potentials that move down the axon?
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