Asked by Jasmine Miller on Sep 23, 2024
Verified
When a motor neuron of a particular motor unit is activated, all of the muscle fibers it innervates are stimulated to contract simultaneously.
Motor Neuron
A type of neuron that transmits signals from the central nervous system to muscles or glands, resulting in movement or secretion.
Motor Unit
A single motor neuron and all the muscle fibers it innervates, functioning together to produce movement.
- Recognize the role of motor neurons in activating muscle fibers.
Verified Answer
BS
Bennett Sheppard4 days ago
Final Answer :
True
Explanation :
This is known as the "all-or-none" principle of muscle contractions, where all muscle fibers within a motor unit will contract together when stimulated by its associated motor neuron.
Learning Objectives
- Recognize the role of motor neurons in activating muscle fibers.