Skeletal Muscle Contraction Quiz

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson
Download our mobile app to listen on the go
Get App

Questions and Answers

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?

  • 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?

  • 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?

<p>Acetylcholine (C)</p> Signup and view all the answers

What is responsible for bringing in calcium during muscle contraction?

<p>Pink protein (A)</p> Signup and view all the answers

What type of channels open, allowing sodium to flow in and causing a depolarizing current?

<p>Voltage-gated sodium channels (C)</p> Signup and view all the answers

What is the role of acetylcholine in muscle cell membrane potential and the release of calcium from the sarcoplasmic reticulum?

<p>Involvement in muscle cell membrane potential and calcium release (D)</p> Signup and view all the answers

What leads to the release of calcium from the sarcoplasmic reticulum?

<p>Depolarizing current caused by sodium influx (C)</p> Signup and view all the answers

What type of neurons fire action potentials that move down the axon?

<p>Somatic motor neurons (D)</p> Signup and view all the answers

Flashcards are hidden until you start studying

More Like This

Use Quizgecko on...
Browser
Browser