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actin and myosin.

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Q: What is at the center of a filament contraction?
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What filament is responsible for the pulling and what filament is pulled in the sliding filament theory?

In the sliding filament theory of muscle contraction, the thin filament (actin) slides over the thick filament (myosin). Myosin is responsible for pulling the actin filaments towards the center of the sarcomere during muscle contraction.


The sliding filament model of contraction involves .?

The sliding filament model of contraction involves actin filaments overlapping myosin filaments.


In the sliding filament mechanism the thin filament is being pulled toward the?

M-line, causing overlap with the thick filament during muscle contraction. This results in the sarcomere shortening and overall muscle contraction.


What moves toward center of sarcomere?

During muscle contraction, the thin filaments (actin) are pulled towards the center of the sarcomere, which causes the Z-lines to move closer together. This process is facilitated by the interaction between actin and myosin filaments during the sliding filament mechanism of muscle contraction.


What is the thin filament of the myocardial cell?

The thin filament of a myocardial cell is composed primarily of actin, tropomyosin, and troponin proteins. These proteins play a crucial role in regulating the contraction and relaxation of the heart muscle by interacting with the thick filament during the process of muscle contraction.


Physical evidence that supports the sliding filament theory of muscle contraction includes?

decreased width of the H band during contraction


What is in the center of a light bulb?

filament


What protein is not in thin filament?

Myosin is a protein that is not found in the thin filament. Myosin is a motor protein that is primarily found in the thick filament of muscle cells and is responsible for muscle contraction. The thin filament contains proteins such as actin, tropomyosin, and troponin.


What is the protein filament that slides inward toward the middle of a sarcomere during a muscle contraction?

Actin


Which myofilaments actually do the pulling during the sliding filament model of muscle contraction?

thick filaments


Who proposed the sliding filament theory?

it was a collaboration between Jean Hanson and Hugh Huxley


What myofilament does the pulling?

The myosin myofilament pulls on the actin myofilament during muscle contraction. This interaction, known as the sliding filament theory, results in the shortening of the sarcomere and muscle contraction.