26 - The Motor Unit and Spinal Motor Circuits Flashcards
1
Q
What does the Motor Unit consist of?
A
A single motor neuron, and all the muscle fibers associated with it.
2
Q
What are the three types of Motor Unit?
A
Slow
Fast Fatigue-Resistant
Fast Fatigue-Sensitive
3
Q
Slow Motor Units
A
Long sustained contraction
Example: Diaphragm,
4
Q
When an interneuron synapses on two neurons of different sizes, which fires first?
A
The smaller one!!
5
Q
What is fibrillation?
A
Electrical signals when the muscle is at rest
