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After the nerve impulse arrives at skeletal fiber during neuromuscular junction, myosin bonds with actin to shorten muscles and fibers.

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there is myosin and actin in the sacromere which causes contractions.

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Myofibrils contain myosin and actin.

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sacromere has two types of filaments and one of them is myosin

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A nerve impulse tells calcium to be released from the sarcoplasmic reticulum in order for a contraction to happen.

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A nerve impulse tells calcium to be released from the sarcoplasmic reticulum in order for a contraction to happen.

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Actin and myosin are fillaments that are part of the sarcomere, which is effected by a nerve impulse.

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myosin is a thick type of filament that makes up myobrils which are inside the muscle fiber where the nerve impulse arrive

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The nerve impulse sends calcium to be released from the sarcoplasmic reticulum which later causes contraction in the muscle cells. ✌️🤘🖖

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The myofibril contains sarcomeres that shrink when the sarcoplasmic reticulum releases calcium. 

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The myofibril contains sarcomeres that shrink when the sarcoplasmic reticulum releases calcium. 

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Myofibrils are made up of repeating subunits called sarcomeres, which consist of the two filaments actin and myosin.

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Myofibrils are made up of repeating subunits called sarcomeres, which consist of the two filaments actin and myosin.

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Myosin is a thick filament that is involved in contraction

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A nerve impulses is followed by a contraction which demands for the extension and flexion  of several filaments.

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Sarcoplasmic reticulum is stored calcium in the sarcoplasm which calcium is then released when the neuromuscular junction is hit with a nerve impulse, allowing movement.

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Sarcoplasmic reticulum is stored calcium in the sarcoplasm which calcium is then released when the neuromuscular junction is hit with a nerve impulse, allowing movement.

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The process of contraction involves the filaments actin & myosin to be activated in a power strike reaction to pull the sarcomere z-lines inward.

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A myofibril consists of two types filaments, myosin and actin

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A nerve impulse sends a signal to the sacroplasmic reticulum to release calcium so that the myosin could attach to actin for muscle contraction.

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in the scaromere are the thin and thick filaments, containing myosin and actin

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Myosin 👌🏼👌🏼is a type of thick 😤😤😩filament which causes ➡️ the muscle 💪 💪 to shorten 👇🏻when nerve impulses 🍑happen 👍🏻👍🏻

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the sarcoplasmic reticulum stores calcium which is released by a nerve impulse, causing myosin to pull on the actin which shortens the sarcomere; causing contraction.

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the sarcoplasmic reticulum stores calcium which is released by a nerve impulse, causing myosin to pull on the actin which shortens the sarcomere; causing contraction.

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The sarcomere consists of thin filaments (actin) and thick filaments (myosin), which contract when the muscle fiber receives a nerve impulse. 💪

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Both actin and myosin can be found within the sarcomere... 😍😍😍😍😍😍😍😍😍😍😍😍😍😍😍❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️

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Muscle contraction is when the thick and thin filaments work together and pull to shorten the muscle. It contains myosin to pull. Sarcomeres are the repeting units of myofril making up each sarcomere.

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Actin is a thin filament that has strands of the glo🅱️ular protein actin arranged in a dou🅱️le helix

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Actin is a thin filament that has strands of the glo🅱️ular protein actin arranged in a dou🅱️le helix

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Nerve impulse occurs through the neuromuscular junction, and calcium is released from sarcoplasmic reticulum

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Nerve impulse occurs through the neuromuscular junction, and calcium is released from sarcoplasmic reticulum

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Nerve impulse causes muscle contraction by causing the release of calcium to have the contraction 💪🏽🏋🏽

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the sacromere contains myosin and thin filaments, known as actin

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Here is my beautiful sentence world you are welcome

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Here is my beautiful sentence world you are welcome