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What structure runs the length of the sarcomere through the thick filaments and contributes to the elastic recoil in muscle?
The structure that runs the length of the sarcomere through the thick filaments and contributes to the elastic recoil in muscle is the protein titin. Titin acts as a molecular spring, providing elasticity to the muscle and helping it return to its original length after contraction.
In an isotonic contraction the muscle does what?
In an isotonic contraction, the muscle changes in length while maintaining a constant tension. This allows for movement to occur, such as bending the elbow or lifting a weight.
What are the sensory receptors used to monitor muscle tone?
Muscle spindles are sensory receptors that monitor muscle tone. They are located within the muscle belly and are sensitive to changes in muscle length and stretch, providing feedback to the central nervous system about the state of muscle contraction.
The ability of smooth muscle to function over a wide range of lengths is called what?
The ability of smooth muscle to function over a wide range of lengths is called plasticity or length-tension relationship. This allows smooth muscle to contract effectively regardless of changes in its length or stretch.
Which sensory receptor is sensitive to change in tension of a muscle?
proprioceptors
What monitors muscle length and sends an impulse to the spinal cord to initiate the stretch reflex?
What monitors muscle length and sends an impulse to the spinal cord to indicate the stretch reflex
What is muscle length?
muscle length is the length of an animal or humans muscle
What aspects of muscle function are monitored by muscle spindles and tendon organs?
Muscle spindles primarily monitor muscle length and changes in muscle length, providing information about muscle stretch and contraction. Tendon organs, on the other hand, monitor muscle tension or the force of muscle contraction by detecting changes in tension within the tendons. Together, these sensory receptors help regulate muscle tone and protect muscles from injury.
What happens to the length of a muscle when it contracts?
When a muscle contracts, it shortens in length.
Does muscle length change during isometric movements?
No, the length of the muscle fibers does not change. In isotonic movements is when the length changes.
What is a muscle cell?
A muscle cell is a cell which can change length
What type of receptor detects muscle length?
Muscle Spindle
Do muscle spindles measure the rate of stretch of a muscle?
They measure the rate of change of length of a muscle.
Why stretching a muscle beyond its optimal length reduce its ability to contract?
Stretching a muscle beyond its optimal length reduces its ability to contract. This is because the muscle can be torn or damaged.
What happens If a muscle is applied to a load that exceeds the muscle's maximum tension?
The muscle length will not change during a contraction.
When your muscle contacts what is happening to its length?
it shortens
A contraction in which there is no change in muscle length but there is a great increase in muscle tension is?
isometric contractions
