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movable end that all mucles attach to; moves when the muscle contracts; all that muscles do is shorten and pull on this
conective tissue cover
what is all around every cell in muscles, every group of cells, and the whole muscle. all of them join together to make the tendon, where they also voer the bone
each muscle cell is made up of _________, which are arranged in a regular, striated pattern
means "soft tissue" and "repeating unit"; it is a pattern, what makes the striations; the lines that you see and the part of the muscle that contracts. consists of actin, myosine, and z lines
the chemical in the sliding filament theory that the nerve spits at muscular cells across the neuromuscular junction which causes a change in the muscle cell, creating a current
calcium, actin active site
in the sliding filament theory, the current in the muscle cell causes the endoplasmic reticulum to throw up ________ all over the cell which them uncovers the ___________________
when the actin active site is uncovered in the sliding filament theory, the __________- grabs the z lines and pulls it behind it, which is the muscle contracting
the muscle contracting uses up 1 _____, and befor the myosine can let go, it needs another one or else you get _________
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