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In motor unit summation how many motor units are required to lift weight of 160 and 80?
Wiki User
∙ 9y ago
The amount of motor units that is needed to lift 160 pounds will be greater that the number required when lifting 80 pounds. This is due to the nervous system reading the situation and determining the number of units required. The smaller the muscle, the more delicate the control can be.
Wiki User
∙ 9y ago
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How do asynchronous motor units summation reduce muscle fatigue and how does this relate to muscle tone?
Asynchronous recruitment of motor units is used to prevent fatigue. While some motor units are active others are inactive. This pattern of firing of motor neurons prevents fatigue while maintaining contraction by allowing a brief rest for the inactive units.
What is difference between single motor unit and multi motor unit?
There is no 'multi motor unit' to be different from a single motor unit!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 number of active single motor units.Notice that what's being described is not something having to do with a some non-existent thing called a 'multi motor unit', but rather is a summation of many active singlemotor units.
What size are the motor units in the eye?
The motor units of the eye are small. Small motor units are found where precise movements are needed as in the muscles of the eye.
What is the atomic weight of ruthenium to 3 decimal places?
The atomic weight of ruthenium to 3 digits after the dot is 101.065 unified atomic mass units. The formula for calculating atomic weight is: n ∑(wx*px) x=1 where: n is the number of isotopes you have the data for. w is the weights of the isotopes. p is the percent compositions of the isotopes in decimal form. ∑ is the summation symbol. The data can be found in the provided link.
Weight is measured in units called?
Weight is measured in units called newtons , while mass is measured in units called grams and kilograms.
How do asynchronous motor units summation reduce muscle fatigue and how does this relate to muscle tone?
Asynchronous recruitment of motor units is used to prevent fatigue. While some motor units are active others are inactive. This pattern of firing of motor neurons prevents fatigue while maintaining contraction by allowing a brief rest for the inactive units.
What is multiple motor unit summation or recruitment in a muscle?
When a greater number of motor units are present in a muscle and are able to be simultaneously stimulated causing an increase in muscle force (Sherwood, and Kell 271-272).
How many motor units are required to lift 160 lbs?
4
What is difference between single motor unit and multi motor unit?
There is no 'multi motor unit' to be different from a single motor unit!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 number of active single motor units.Notice that what's being described is not something having to do with a some non-existent thing called a 'multi motor unit', but rather is a summation of many active singlemotor units.
To accomplish a strong contraction are stimulated at a rapid rate?
many motor units are stimulated
What is the difference between wave summation and recruitment?
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 rest) so each stimulation adds up. This is all within ONE MUSCLE FIBER. Recruitment is the calling up multiple MOTOR UNITS, in order to increase the force of contraction. t has a size principle (those with small diameters, the more delicate ones are called first, then the larger and so on.) There is no added calcium ions as in wave summation. They usually occur together. wave summation can cause tetanus, while recruitment cannot.
What size are the motor units in the eye?
The motor units of the eye are small. Small motor units are found where precise movements are needed as in the muscles of the eye.
When holding an object steady does the number of motor units remain the same?
Yes it does. As long as the effort to hold the object in a steady position remains the same, then the number of motor units needed to keep it in that position remains the same. It is only when the force, or effort, required to do a specific task changes does the number of motor units needed to accomplish the task change.
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
Which of the following would be recruited later in muscle stimulation when contractile strength increases?
Um are you an idiot, you never put choices! A) large motor units with small, highly excitable neurons B) motor units with the longest muscle fibers C) many small motor units with the ability to stimulate other motor units D) motor units with larger, less excitable neurons
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.
