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What consists of a somatic motor neuron plus all the skeletal muscle fibers it stimulates?
A motor unit consists of a somatic motor neuron and all the skeletal muscle fibers it innervates. When the motor neuron fires an action potential, all the muscle fibers in its motor unit contract simultaneously. Motor units vary in size depending on the precision of movement required, with smaller units needed for fine control and larger units for more powerful movements.
Are precise movements controlled by small motor units?
Yes, precise movements are controlled by small motor units. Small motor units are composed of fewer muscle fibers and are responsible for fine motor control and intricate movements. These motor units are recruited for tasks that require precision and accuracy.
Is it true that the extrinsic eye muscle motor units contain only 8 to 12 muscle cells and in some cases as few as 2 or 3 muscle cells?
yes true
In motor unit summation how many motor units are required to lift weight of 160 and 80?
To lift a weight of 160, more motor units are recruited than to lift a weight of 80. The exact number of motor units required will depend on factors such as fiber type and muscle strength. Generally, heavier weights require recruitment of more motor units to achieve the necessary force production.
How do asynchronous motor units summation reduce muscle fatigue and how does this relate to muscle tone?
Asynchronous motor unit summation allows motor units to take turns contracting, which helps to distribute the workload across different muscle fibers. This reduces the build-up of metabolic by-products that can contribute to muscle fatigue. This mechanism also helps to maintain muscle tone by ensuring that some motor units remain active even when others are fatigued, providing continuous tension in the muscle.
How are motor units recruited?
Motor units can be recruited when the activation of the motor neuron activates all muscles fibers in the motor unit. The increase in tension occurs in steps proportional to the size of the motor unit.
Motor unit would produce greatest tension eye back hand?
The hand muscles contain motor units that produce the greatest tension, followed by the back muscles and then the eye muscles. This is due to the varying sizes and recruitment patterns of motor units in different muscles throughout the body.
Which principle states that motor units are recruited in order to their recruitment and firing rates?
Size Principle
Which principle states that motor units are recruited in order according to their recruitment thresholds and rates?
Size Principle
Can you swap riding lawnmower motors out with same size motor but different model sears units?
Yes
To accomplish a strong contraction are stimulated at a rapid rate?
many motor units are stimulated
Which principle states that motor units are recruited in order according to their recruitment thresholds and firing rates?
Size Principle
What consists of a somatic motor neuron plus all the skeletal muscle fibers it stimulates?
A motor unit consists of a somatic motor neuron and all the skeletal muscle fibers it innervates. When the motor neuron fires an action potential, all the muscle fibers in its motor unit contract simultaneously. Motor units vary in size depending on the precision of movement required, with smaller units needed for fine control and larger units for more powerful movements.
Are precise movements controlled by small motor units?
Yes, precise movements are controlled by small motor units. Small motor units are composed of fewer muscle fibers and are responsible for fine motor control and intricate movements. These motor units are recruited for tasks that require precision and accuracy.
what size motor ?
what size motor
How do you convert 3phase 1hp motor into units?
Into units of what?
To accomplish strong contraction what is stimulated at a rapid rate?
Many Motor Units
