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A weak stimulus can cause a muscle fiber to contract only partway?
When a weak stimulus is applied to a muscle fiber, only a few motor units are recruited to contract. This results in a partial muscle contraction where not all muscle fibers are activated. Stronger stimuli recruit more motor units, leading to a full muscle contraction.
What factors affect muscle contraction?
the degree of muscle stretch is affect the strength or force of skeletal muscle contraction
What is a concentric contraction?
concentric contraction is atype of muscle contraction which the muscle shortens while genrating aforce The muscle shortens to produce movement. A muscle contraction in which shortening occurs.
What is a contraction in which the muscle shorten and work is done?
This is muscle flexion or isotonic contraction.
True or false When the contraction of a skeletal muscle is studied in the laboratory by applying an electrical charge to the muscle the contraction is called a muscle twitch.?
true
What is the state of slight contraction present in healthy muscles?
The continuous partial contraction of muscle is called muscle tone
An example of partial but sustained contraction is?
A Muscle Tone .
An example of a partial but sustained contraction would be what?
muscle tone
An example of a partial but sustained contraction would be?
muscle tone
What is a property of muscle whereby a steady or constant state of partial contraction is maintained in a muscle?
Muscle Tone
Which muscle generally remains in a state of partial contraction when your legs are straight?
Your quadriceps femoris are generally in a state of partial or full contraction if the leg is completely or somewhat straight.
What muscle generally remain in a state of partial contraction when you are keeping your legs straight?
The quadriceps femoris are naturally in a state of partial or full contraction if the leg is completely or somewhat straight.
What is the primary function of wave summation?
produce smooth, continuous muscle contraction
Skeletal muscle twitch differs from a tetanic contraction in that?
Skeletal muscle twitch is a single, brief contraction and relaxation cycle, whereas a tetanic contraction involves sustained, rapid repeated contractions without relaxation in between. Tetanic contractions occur when the muscle is stimulated at a high frequency, leading to a fused contraction.
Is a muscle spasm a fused tetanus?
No, a muscle spasm is not the same as fused tetanus. A muscle spasm is an involuntary contraction of a muscle that can occur suddenly and may be temporary. Fused tetanus, on the other hand, refers to a sustained muscle contraction resulting from a high frequency of stimulation, where individual twitches merge into a continuous contraction. While both involve muscle contractions, they differ in their causes and characteristics.
What constant slight contraction on certain fibers in a muscle?
The constant slight contraction of certain fibers in a muscle is known as "tonus" or muscle tone. This state of partial contraction helps maintain posture and readiness for movement, providing stability to the body. Muscle tone is regulated by the nervous system and involves a balance between excitation and inhibition of motor neurons. It is essential for overall muscle function and coordination.
A skeletal muscle's partially contracted state that is normal even when the muscle is not in use is called?
The state of partial skeletal muscle contraction is known as tonus. Muscles of the body do not have a real state of total relaxation.
