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What is the part of the muscle fiber that allows the fiber to contract?
Wiki User
∙ 10y ago
The sacromere with the proteins actin and myosin allow the muscle cell (fiber) to contract.
Wiki User
∙ 10y ago
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The movable part of a muscle is?
The sarcomere is the contractile unit of a muscle fiber.
What type of muscle fiber pennation is the deltoid muscle?
A deltoid muscle is the muscle that forms the rounded part of the shoulder.
What is the difference between a whole muscle and muscle fiber?
A whole muscle is the whole muscle while a muscle fiber is part of a muscle. I'm not sure if I'm correct though, so check with some different sources.
What is the smallest structure in a muscle?
Muscles always contract entirely i.e. every part of the muscle which contains myosin and actin (contractile proteins) is able to contract and does contract almost simultaneously.
What tissue's major function is to contract?
The muscle tissue's main function is to contract.
What shape are skeletal muscle fibers?
Each fiber is actually a muscle cell. They are found in bundles that form what we call muscles. These are also called skeletal muscles because when they contract and get shorter, the bones that they are attached to, move. And the bones are part of the skeletal system.
In what part of the body does contractions happen in?
Every muscle has the ability to contract. It is what muscles do.
What is the body part that allows the rabbit hopping?
The muscle in there thy gives them enough power to hop.
What is a muscle made from?
A muscle is made of many cylindrical muscle fibers. The many fibers are bound together with connective tissue. Nerves and blood vessels (arteries and veins) run along the connective tissue.In every muscle fiber, there are thick filaments, made of the protein myosin, and thin filaments, made of the protein actin. The filaments overlap to form the sarcomere, a part of the muscle. Myosin has little heads that attach to actin, and pull on it. This is when the sarcomere contracts, and when all of the sarcomeres of a muscle contract, the entire muscle contracts.
What body part works in pairs to pull your bones in different directions?
They are the muscles. Muscles contract in pairs to move the parts across the joint. One muscle contract with more power. The opposite muscle contracts with less power and get stretched over to allow the first muscle to act.
What makes a muscle?
A muscle is made of many cylindrical muscle fibers. The many fibers are bound together with connective tissue. Nerves and blood vessels (arteries and veins) run along the connective tissue.In every muscle fiber, there are thick filaments, made of the protein myosin, and thin filaments, made of the protein actin. The filaments overlap to form the sarcomere, a part of the muscle. Myosin has little heads that attach to actin, and pull on it. This is when the sarcomere contracts, and when all of the sarcomeres of a muscle contract, the entire muscle contracts.
What do muscles need so they can contract?
i know that you need a nerve impulse the second i think is calcium and i don't know what the third is. Movement is initiated by muscles (forces) moving about levers (bones, etc humerus) about axes (our joints). In order for a muscle to contract a neural impulse in needed and in the abssence of a neural impulse calcium is reabsorbed into the; sarcoplasmic reticulum ( part of a single muscle fibre)
