AP Biology Muscular System Flashcards
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| 6278718873 | skeletal muscle | Muscle tissue that is attached to the bones. This muscle is striated and under voluntary control. |  | 0 |
| 6278718874 | cardiac muscle | Involuntary muscle tissue found only in the heart. |  | 1 |
| 6278718875 | smooth muscle | Muscle tissue in the walls of body organs such as the stomach and intestines. It controls involuntary movement and makes the organs expand and contract. |  | 2 |
| 6278718876 | sarcomere | Contractile unit of muscle |  | 3 |
| 6278718877 | tendon | Connects muscle to bone |  | 4 |
| 6278718881 | ATP | Adenosine Triphosphate/Chemical energy in cells |  | 5 |
| 6278718882 | lactic acid | Is produced in the muscles when glucose is broken down during strenuous muscular activity. The soreness experience after prolonged heavy exercise is due to accumulated lactic acid in the muscles. |  | 6 |
| 6278718883 | tetanus | The smooth, sustained contraction of a skeletal muscle |  | 7 |
| 6278718884 | atrophy | To waste away |  | 8 |
| 6278718885 | Fascicle | A bundle of muscle fibers |  | 9 |
| 6278718886 | Smooth Muscle | Muscular tissues that surround tubular organs such as the stomach, intestines and blood vessels |  | 10 |
| 6278718887 | Skeletal Muscle | Composed of muscular tissue, nervous tissue, blood vessels and connective tissue |  | 11 |
| 6278718889 | Myosin | A thick protein filament found in skeletal muscle |  | 12 |
| 6278718890 | Actin | A thin protein filament found in skeletal muscle | | 13 |
| 6278718891 | Neurotransmitter | Message carrying vessels that travel from an axon to the action site of a muscle |  | 14 |
| 6278718892 | Motor Neuron | The communication port of a skeletal muscle cell that dictates action |  | 15 |
| 6278718893 | Motor Unit | A motor neuron and the muscle fibers that it control |  | 16 |
| 6278718894 | Muscle Fiber | A single muscles cell that make up skeletal muscle |  | 17 |
| 6278718895 | Myofibril | A fibril collectively arranged in longitudinal bundles in muscle cells (fibers); composed of thin filaments of actin and a regulatory protein and thick filaments of myosin. |  | 18 |
| 6278718896 | Voluntary Muscle | A muscle that is under conscious control | 19 | |
| 6278718897 | Involuntary Muscle | A muscle that is not under conscious control | 20 |