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We don't use all our muscle fibers in a particular muscle all at once because they get damaged when we use them. If the muscle becomes weak, then it hinders the ability to continue with using the muscle making it difficult for our human survival. At times it is possible to use all the muscle fibers (and many have been documented) at once but only possible for very short instances as it requires lots of energy which is stored in the muscle. The muscle will often break down after the action where it may not be possible for the muscle to be used (at least not at normal strength) for several weeks even months. Its a subconscious effect and will not be possible for a person to do it consciously.
What else can I help you with?
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
Smooth muscle fibers are the shortest of all muscle cell types?
No. Cardiac muscle fibers.
Is skeletal muscle made of muscle fibers?
Basically, yes. All muscle (skeletal, cardiac and smooth) are made of muscle fibers.
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.
Do all types of muscle fibers produce movement?
No, intrafusal fibers don't contract.
How is the all-or-none response related to the strength of a muscle contraction?
The all-or-none response means that a muscle fiber contracts fully or not at all in response to a stimulus. The strength of a muscle contraction is determined by the number of muscle fibers that are recruited to contract, rather than the degree of contraction of individual muscle fibers. Therefore, the all-or-none response influences the overall strength of a muscle contraction by determining how many muscle fibers are activated.
Do all cardiac muscle fibers all contract at the same time?
No. The heart muscle contracts in sections, first the top (atrium) then the bottom (ventricle). But when it is working properly, the heart muscle fibers contract together in large groups.
Define motor unit?
A motor unit consists of a motor neuron and all the muscle fibers it innervates. When the motor neuron fires, all the muscle fibers in the motor unit contract simultaneously. This coordinated activation allows for precise control of muscle force and movement.
Is it true or false that all of the muscle fibers involved in a muscle contraction are performing individual muscle twitches?
falso my friendo
What motor neuron and all the muscle fibers it innervates called?
the motor unit
When a single neuron sends a strong enough impulse to a muscle that how many muscle fibers does it cause to contract?
When a single neuron sends a strong enough impulse to a muscle, it can cause multiple muscle fibers within that muscle to contract. The specific number of muscle fibers that contract will depend on factors like the size of the motor unit and the intensity of the signal from the neuron.
