The innervation ratio of a motor unit can tell us 1)How many skeletal muscle fibers are...
The innervation ratio of a motor unit can tell us
1)How many skeletal muscle fibers are innervated by a single alpha motor neuron
2) Whether the muscle involved can execute fine motor movements
3) How big the muscle is
4) I and II
5) I and III
Homework Answers
The innervation ratio, by definition, indicates the number of skeletal muscle fibers that are innervated by a single alpha motor neuron.
Option I) is true.
A low innervation ratio indicates that the muscle involved can execute fine motor movements.
Option II) is true.
The innervation ratio cannot tell us how big the muscle is.
Option III) is false.
Since option III) is false, option 5) is false as well.
Hence, the correct answer is option 4) I and II.
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