142119
Beschreibung
Karteikarten von dancedrill, aktualisiert more than 1 year ago
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Erstellt von dancedrill
vor etwa 11 Jahre
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| Frage | Antworten |
| The plasma membrane of a muscle fiber is called? | Sarcolemma |
| The cytoplasm of a sarcolemma is called? | Sarcoplam |
| The sarcoplasm is occupied mainly by long protein bundles called? | myofibrils |
| Myofibrils are about what size in diameter? | 1 um |
| Myofibrils contain an abundance of ? | glycogen. |
| why are myofibrils filled with a lot of glycogen? | It provides energy for the cell during heightened levels of exercise. |
| why are myofibrils filled with a lot of glycogen? | It provides energy for the cell during heightened levels of exercise. |
| What is the function of myoglobin? | stores oxygen until needed for muscular activity. red pigmented. |
| Describe a myoblast | multiple muscle fibers that have flattened nuclei pressed against the inside of the sarcolemma. |
| function of myoblast? | their unusual multinuclear condition results from their embryonic development, several stem cells called myoblast. The myoblasts fuse to produce each muscle fiber. |
| Describe a myoblast | multiple muscle fibers that have flattened nuclei pressed against the inside of the sarcolemma. |
| describe sarcoplasmic reticulum (SR) | smooth ER that forms a network around each myofibril. calcium storage. calcium activates the muscle contraction process. |
| function of myoblast? | their unusual multinuclear condition results from their embryonic development, several stem cells called myoblast. The myoblasts fuse to produce each muscle fiber. |
| Describe T tubules | tubular infolding of the sarcolemma which penetrate through the cell and emerge on the other side. Release of Ca2+ into cell. |
| function of myoblast? | their unusual multinuclear condition results from their embryonic development, several stem cells called myoblast. The myoblasts fuse to produce each muscle fiber. |
| Describe Triad | a T tubule and two terminal cisterns |
| function of myoblast? | their unusual multinuclear condition results from their embryonic development, several stem cells called myoblast. The myoblasts fuse to produce each muscle fiber. |
| Terminal cisternae | the dilated ends of sarcoplasmic reticulum adjacent to a T tubule. |
| function of myoblast? | their unusual multinuclear condition results from their embryonic development, several stem cells called myoblast. The myoblasts fuse to produce each muscle fiber. |
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