Describe the sequence of events that occurs when an action potential arrives at a muscle fiber's motor endplate, causing the muscle to be depolarized
Added by Alejandro R.
Step 1
Step 1: Deep polarization at the motor endplate of the muscle fiber is propagated from the cell membrane to the sarcoplasmic reticulum. Show more…
Show all steps
Your feedback will help us improve your experience
Suman K and 73 other Biology educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
Write the sequence of events that leads to a muscle contraction, starting with "Action potentials occur in the axon of a motor neuron."
Write the sequence of events that leads to a muscle contraction, starting with "An action potential travels along the axon of a motor neuron."
Every skeletal muscle fiber is supplied by a motor nueron at the NMJ.Watch this video (http://openstaxcollege.org/I/skelmuscfiber) to learn more about what happens at the neuromuscular junction. (a) What is the definition of a motor unit? (b) What is the structural and functional difference between a large motor unit and a small motor unit? Can you give an example of each? (c) Why is the neurotransmitter acetylcholine degraded after binding to its receptor?
Recommended Textbooks
Biology for AP Courses
Objective Biology for NEET
Introduction to General, Organic and Biochemistry
Transcript
18,000,000+
Students on Numerade
Trusted by students at 8,000+ universities
Watch the video solution with this free unlock.
EMAIL
PASSWORD