5 Questions
What is the definition of a motor unit?
A single motor neurone and all the muscle fibres it innervates
What is the characteristic of a motor unit?
All the muscle fibres in a motor unit contract at once
What is a twitch in the context of muscle fibre contraction?
The mechanical response of a muscle fibre to a single action potential
What determines the graded muscle response?
Frequency of neural stimuli
What is the smallest functional unit of a muscle group?
The motor unit
Graded Muscle Response and Motor Units Quiz: Test your knowledge of how muscle cells respond to different stimuli and the characteristics of motor units. Explore questions on muscle fiber innervation, contraction, and the relationship between motor neurons and muscle fibers.
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