Anatomy of a Muscle
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17 terms
Terms | Definitions |
|---|---|
 Endomysium | Connective tissue surrounding each muscle cell |
| Perimysium | Connective tissue surrounding the fascicle |
| Epimysium | Connective tissue surrounding the entire muscle |
| Sarcomere | Contractile unit of a muscle |
| Muscle Fiber | Muscle cells |
| Sarcolemma | Plasma membrane of a muscle cell |
| Myofibril | Long, cylindrical organelle that makes up a muscle fiber |
| Tendon | Cordlike extension of connective tissue that connects muscle to bone |
| Fascicle | A bundle of muscle cells |
| Actin | Thin filaments |
| Myosin | Thick filaments |
| Z line | Separates the sarcomeres |
| A band | Dark band where both actin and myosin overlap |
| I band | Light band that contains only actin |
| H band | Center band that contains only myosin |
| Sarcoplasmic Reticulum | A network of tubules and channels in which Calcium is stored |
| Sarcoplasm | Gelatinous fluid which fills most muscle cells |
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