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Are the number of muscle fibers in an individual motor unit high?
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What is the relationship between the number of motor neurons recruited and the number of skeletal muscle fibers innervated?
Typically, hundreds of skeletal muscle fibers are innervated by a single motor neuron.Completed
What is a motor unit is made up of?
Motor neurons and the muscle fibers they transmit signals toA motor unit is a collection of muscle fibers that contract as a single functional unit when stimulated by an impulse from a motor neuron. The actual size can vary greatly, from many large muscle fibers in the quadriceps muscle group per motor unit to just a few muscle fibers in the muscles of the fingers per motor unit.
The combination of a neuron and the muscle fibers it associates with is called?
Motor unit = the single motor neuron and the multiple muscle fibers that it innervates.
Would the ratio of motor neurons to muscle fibers be the greatest at the muscle that control the eye?
Yes, th ration of motor neurons to muscle fibers are greatest for the muscles that control eye.
What motor unit has the fewest muscle fibers?
One that isn't needed for precise movement. Muscles that need precise control have motor units with more muscle fibers.
A motor neuron and the muscle fibers it controls are called?
the motor unit
A motor neuron transmits signals to?
Muscle fibers
What motor neuron and all the muscle fibers it innervates called?
the motor unit
Once a motor neuron has fired all the muscle fibers in a muscle contract.?
False
Once a motor neuron has fired all the muscle fibers in a muscle contract?
False
Define motor unit?
a motor neuron together with the muscle fibers (cell) it stimulates.
What part of nervous system controls voluntary movements thoughts and registration of incoming information?
The muscle fibers are functionally organized as motor units. A motor unit consists of a single motor neuron and all of the muscle fibers it innervates.Whole muscles exhibit characteristics that are more complex than those of individual muscle fibers or motor units. Instead of responding in an all-or-none fashion, whole muscles respond to stimuli in a graded fashion, which means that the strength of the contractions can range from weak to strong.
