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www.reference.com/science/motor-unit-summation-33299869af...

Motor unit summation is the build-up of the myoelectrical signals of the active motor unit during continuous, sustained muscle contraction. Sustained contraction causes the motor unit to fire continuously, creating myoelectrical signal fusion that produces larger forces than a single contraction.

study.com/academy/lesson/how-motor-unit-summation-develops...

Motor unit summation or spatial summation is the recruitment of additional motor units within a muscle to develop more force. Motor unit summation occurs until sufficient force is developed within ...

www.answers.com/Q/What_is_multiple_motor_unit_summation

A single motor unit is all the muscle fibers controlled by a single motor neuron. Multiple motor unit summation is when a smooth and steady increase in muscle tension is produced by increasing the ...

quizlet.com/14677709/muscle-tissue-2-flash-cards

recruitment of many motor units becomes more efficient with training, and can alsp occur under extreme stress temporal summation nerve impulses (greater the frequency of stimulation, the more strongly a muscle contracts)

quizlet.com/3043818/anatomy-tests-ii-flash-cards

asynchronous motor unit summation when not all muscle cells are working at the same time so that some can rest while others are contracting. This allows posture muscles to be contracted all day without tiring, because the motor units take turns.

www.answers.com/Q/What_is_the_difference_between_wave...

Wave summation releases more calcium and increases the force of contraction by increasing the firing rate of motor neurons (The second contraction takes place before the first is completely at ...

www.reference.com/science/wave-summation-62ebfc0be934b178

Muscle contraction is also influenced by motor unit summation. The motor unit consists of a neuron and every muscle fiber connected to it. A nerve impulse moving through the axon of a neuron causes every muscle cell attached to the motor unit to contract. In motor unit summation, stronger contractions are achieved by stimulating large motor ...

sites.google.com/.../muscles/motor-units-and-spatial-summation

Motor units: All motor neurones leading to a muscle fibre end in branches. Each leading to a neuromuscular junction. Nerve impulses passing down this motor neurone will trigger contractions in all the muscles fibres found at the end of the branches. A motor unit is: A motor neurone and all its muscle fibres.. Each muscle fibre within a motor unit either contracts or does not contract maximally ...

people.eku.edu/ritchisong/301notes3.htm

An important characteristic of skeletal muscle is its ability to contract to varying degrees. A muscle, like the biceps, contracts with varying degrees of force depending on the circumstance (this is also referred to as a graded response). Muscles do this by a process called summation, specifically by motor unit summation and wave summation.

en.wikipedia.org/wiki/Motor_unit_recruitment

Motor unit recruitment refers to the activation of additional motor units to accomplish an increase in contractile strength in a muscle. A motor unit consists of one motor neuron and all of the muscle fibers it stimulates. All muscles consist of a number of motor units and the fibers belonging to a motor unit are dispersed and intermingle amongst fibers of other units.